<?xml version="1.0" encoding="utf-8" standalone="yes"?>
<!-- Compliance Xpressware Instance Document http://www.compliancexpressware.com/  -->
<!-- Version: 1.0.0 --><!-- Creation date:10:06:46 GMT-0400 -->
<!-- Copyright (c) Compliance Xpressware, LLP. All Rights Reserved. -->
<xsd:schema targetNamespace="http://www.securitydevicesinternational.com/20130831" elementFormDefault="qualified" attributeFormDefault="unqualified" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:sdev="http://www.securitydevicesinternational.com/20130831" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xmlns:nonnum="http://www.xbrl.org/dtr/type/non-numeric" xmlns:num="http://www.xbrl.org/dtr/type/numeric" xmlns:invest="http://xbrl.sec.gov/invest/2013-01-31" xmlns:us-types="http://fasb.org/us-types/2013-01-31">
  <xsd:annotation>
    <xsd:appinfo>
      <link:roleType roleURI="http://www.securitydevicesinternational.com/taxonomy/role/DocumentAndEntityInformation" id="role_DocumentAndEntityInformation">
        <link:definition>101 - Document - Document and Entity Information</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.securitydevicesinternational.com/taxonomy/role/BalanceSheet" id="role_BalanceSheet">
        <link:definition>102 - Statement - Interim Balance Sheets</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.securitydevicesinternational.com/taxonomy/role/BalanceSheetParenthetical" id="role_BalanceSheetParenthetical">
        <link:definition>103 - Statement - Interim Balance Sheets (Parenthetical)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.securitydevicesinternational.com/taxonomy/role/IncomeStatement" id="role_IncomeStatement">
        <link:definition>104 - Statement - Interim Statements of Operations and Comprehensive loss</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.securitydevicesinternational.com/taxonomy/role/CashFlows" id="role_CashFlows">
        <link:definition>105 - Statement - Interim Statements of Cash Flows</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.securitydevicesinternational.com/taxonomy/role/StockholdersEquity" id="role_StockholdersEquity">
        <link:definition>106 - Statement - Interim Statement of Changes in Stockholders' Equity</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.securitydevicesinternational.com/taxonomy/role/NotesToFinancialStatementsBasisOfAccountingTextBlock" id="role_NotesToFinancialStatementsBasisOfAccountingTextBlock">
        <link:definition>107 - Disclosure - BASIS OF PRESENTATION</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.securitydevicesinternational.com/taxonomy/role/NotesToFinancialStatementsNatureOfOperationsTextBlock" id="role_NotesToFinancialStatementsNatureOfOperationsTextBlock">
        <link:definition>108 - Disclosure - NATURE OF OPERATIONS AND GOING CONCERN</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.securitydevicesinternational.com/taxonomy/role/NotesToFinancialStatementsResearchDevelopmentAndComputerSoftwareDisclosureTextBlock" id="role_NotesToFinancialStatementsResearchDevelopmentAndComputerSoftwareDisclosureTextBlock">
        <link:definition>109 - Disclosure - RESEARCH AND PRODUCT DEVELOPMENT</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.securitydevicesinternational.com/taxonomy/role/NotesToFinancialStatementsPropertyPlantAndEquipmentDisclosureTextBlock" id="role_NotesToFinancialStatementsPropertyPlantAndEquipmentDisclosureTextBlock">
        <link:definition>110 - Disclosure - PROPERTY AND EQUIPMENT</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.securitydevicesinternational.com/taxonomy/role/NotesToFinancialStatementsStockholdersEquityNoteDisclosureTextBlock" id="role_NotesToFinancialStatementsStockholdersEquityNoteDisclosureTextBlock">
        <link:definition>111 - Disclosure - CAPITAL STOCK</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.securitydevicesinternational.com/taxonomy/role/NotesToFinancialStatementsShareholdersEquityAndShareBasedPaymentsTextBlock" id="role_NotesToFinancialStatementsShareholdersEquityAndShareBasedPaymentsTextBlock">
        <link:definition>112 - Disclosure - STOCK BASED COMPENSATION</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.securitydevicesinternational.com/taxonomy/role/NotesToFinancialStatementsStockPurchaseWarrantsTextBlock" id="role_NotesToFinancialStatementsStockPurchaseWarrantsTextBlock">
        <link:definition>113 - Disclosure - STOCK PURCHASE WARRANTS</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.securitydevicesinternational.com/taxonomy/role/NotesToFinancialStatementsRelatedPartyTransactionsDisclosureTextBlock" id="role_NotesToFinancialStatementsRelatedPartyTransactionsDisclosureTextBlock">
        <link:definition>114 - Disclosure - RELATED PARTY TRANSACTIONS</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.securitydevicesinternational.com/taxonomy/role/NotesToFinancialStatementsCommitmentsDisclosureTextBlock" id="role_NotesToFinancialStatementsCommitmentsDisclosureTextBlock">
        <link:definition>115 - Disclosure - COMMITMENTS</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.securitydevicesinternational.com/taxonomy/role/NotesToFinancialStatementsDebtDisclosureTextBlock" id="role_NotesToFinancialStatementsDebtDisclosureTextBlock">
        <link:definition>116 - Disclosure - CONVERTIBLE DEBENTURES</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.securitydevicesinternational.com/taxonomy/role/NotesToFinancialStatementsShortTermDebtTextBlock" id="role_NotesToFinancialStatementsShortTermDebtTextBlock">
        <link:definition>117 - Disclosure - LOANS FROM NON- RELATED PARTIES</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.securitydevicesinternational.com/taxonomy/role/NotesToFinancialStatementsLoanFromRelatedPartiesTextBlock" id="role_NotesToFinancialStatementsLoanFromRelatedPartiesTextBlock">
        <link:definition>118 - Disclosure - LOAN FROM RELATED PARTY</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.securitydevicesinternational.com/taxonomy/role/NotesToFinancialStatementsSubsequentEventsTextBlock" id="role_NotesToFinancialStatementsSubsequentEventsTextBlock">
        <link:definition>119 - Disclosure - SUBSEQUENT EVENTS</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.securitydevicesinternational.com/taxonomy/role/NotesToFinancialStatementsSignificantAccountingPoliciesTextBlock" id="role_NotesToFinancialStatementsSignificantAccountingPoliciesTextBlock">
        <link:definition>120 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.securitydevicesinternational.com/taxonomy/role/NotesToFinancialStatementsAccountsPayableAndAccruedLiabilitiesDisclosureTextBlock" id="role_NotesToFinancialStatementsAccountsPayableAndAccruedLiabilitiesDisclosureTextBlock">
        <link:definition>121 - Disclosure - ACCOUNTS PAYABLE AND ACCRUED LIABILITIES</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.securitydevicesinternational.com/taxonomy/role/NotesToFinancialStatementsIncomeTaxDisclosureTextBlock" id="role_NotesToFinancialStatementsIncomeTaxDisclosureTextBlock">
        <link:definition>122 - Disclosure - INCOME TAXES</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.securitydevicesinternational.com/taxonomy/role/NotesToFinancialStatementsSegmentReportingDisclosureTextBlock" id="role_NotesToFinancialStatementsSegmentReportingDisclosureTextBlock">
        <link:definition>123 - Disclosure - SEGMENT DISCLOSURES</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.securitydevicesinternational.com/taxonomy/role/NotesToFinancialStatementsSettlementofaccountspayableTextBlock" id="role_NotesToFinancialStatementsSettlementofaccountspayableTextBlock">
        <link:definition>124 - Disclosure - SETTLEMENT OF ACCOUNTS PAYABLE</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.securitydevicesinternational.com/taxonomy/role/NotesToFinancialStatementsDeferredCostsCapitalizedPrepaidAndOtherAssetsDisclosureTextBlock" id="role_NotesToFinancialStatementsDeferredCostsCapitalizedPrepaidAndOtherAssetsDisclosureTextBlock">
        <link:definition>125 - Disclosure - DEFERRED COSTS</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.securitydevicesinternational.com/taxonomy/role/NotesToFinancialStatementsSignificantAccountingPoliciesTextBlockPolicies" id="role_NotesToFinancialStatementsSignificantAccountingPoliciesTextBlockPolicies">
        <link:definition>126 - Disclosure - Summary of Significant Accounting Policies (Policies)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.securitydevicesinternational.com/taxonomy/role/NotesToFinancialStatementsPropertyPlantAndEquipmentDisclosureTextBlockTables" id="role_NotesToFinancialStatementsPropertyPlantAndEquipmentDisclosureTextBlockTables">
        <link:definition>127 - Disclosure - PROPERTY AND EQUIPMENT (Tables)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.securitydevicesinternational.com/taxonomy/role/NotesToFinancialStatementsShareholdersEquityAndShareBasedPaymentsTextBlockTables" id="role_NotesToFinancialStatementsShareholdersEquityAndShareBasedPaymentsTextBlockTables">
        <link:definition>128 - Disclosure - STOCK BASED COMPENSATION (Tables)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.securitydevicesinternational.com/taxonomy/role/NotesToFinancialStatementsStockPurchaseWarrantsTextBlockTables" id="role_NotesToFinancialStatementsStockPurchaseWarrantsTextBlockTables">
        <link:definition>129 - Disclosure - STOCK PURCHASE WARRANTS (Tables)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.securitydevicesinternational.com/taxonomy/role/NotesToFinancialStatementsDebtDisclosureTextBlockTables" id="role_NotesToFinancialStatementsDebtDisclosureTextBlockTables">
        <link:definition>130 - Disclosure - CONVERTIBLE DEBENTURES (Tables)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.securitydevicesinternational.com/taxonomy/role/NotesToFinancialStatementsSignificantAccountingPoliciesTextBlockTables" id="role_NotesToFinancialStatementsSignificantAccountingPoliciesTextBlockTables">
        <link:definition>131 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.securitydevicesinternational.com/taxonomy/role/NotesToFinancialStatementsAccountsPayableAndAccruedLiabilitiesDisclosureTextBlockTables" id="role_NotesToFinancialStatementsAccountsPayableAndAccruedLiabilitiesDisclosureTextBlockTables">
        <link:definition>132 - Disclosure - ACCOUNTS PAYABLE AND ACCRUED LIABILITIES (Tables)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.securitydevicesinternational.com/taxonomy/role/NotesToFinancialStatementsIncomeTaxDisclosureTextBlockTables" id="role_NotesToFinancialStatementsIncomeTaxDisclosureTextBlockTables">
        <link:definition>133 - Disclosure - INCOME TAXES (Tables)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.securitydevicesinternational.com/taxonomy/role/DisclosureNatureOfOperationsDetails" id="role_DisclosureNatureOfOperationsDetails">
        <link:definition>134 - Disclosure - NATURE OF OPERATIONS AND GOING CONCERN (Narrative) (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.securitydevicesinternational.com/taxonomy/role/DisclosureStockholdersEquityNoteDisclosureTextBlockDetails" id="role_DisclosureStockholdersEquityNoteDisclosureTextBlockDetails">
        <link:definition>135 - Disclosure - CAPITAL STOCK (Narrative) (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.securitydevicesinternational.com/taxonomy/role/DisclosureShareholdersEquityAndShareBasedPaymentsTextBlockDetails" id="role_DisclosureShareholdersEquityAndShareBasedPaymentsTextBlockDetails">
        <link:definition>136 - Disclosure - STOCK BASED COMPENSATION (Narrative) (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.securitydevicesinternational.com/taxonomy/role/DisclosureStockPurchaseWarrantsTextBlockDetails" id="role_DisclosureStockPurchaseWarrantsTextBlockDetails">
        <link:definition>137 - Disclosure - STOCK PURCHASE WARRANTS (Narrative) (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.securitydevicesinternational.com/taxonomy/role/DisclosureRelatedPartyTransactionsDisclosureTextBlockDetails" id="role_DisclosureRelatedPartyTransactionsDisclosureTextBlockDetails">
        <link:definition>138 - Disclosure - RELATED PARTY TRANSACTIONS (Narrative) (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.securitydevicesinternational.com/taxonomy/role/DisclosureCommitmentsDisclosureTextBlockDetails" id="role_DisclosureCommitmentsDisclosureTextBlockDetails">
        <link:definition>139 - Disclosure - COMMITMENTS (Narrative) (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.securitydevicesinternational.com/taxonomy/role/DisclosureDebtDisclosureTextBlockDetails" id="role_DisclosureDebtDisclosureTextBlockDetails">
        <link:definition>140 - Disclosure - CONVERTIBLE DEBENTURES (Narrative) (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.securitydevicesinternational.com/taxonomy/role/DisclosureShortTermDebtTextBlockDetails" id="role_DisclosureShortTermDebtTextBlockDetails">
        <link:definition>141 - Disclosure - LOANS FROM NON- RELATED PARTIES (Narrative) (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.securitydevicesinternational.com/taxonomy/role/DisclosureLoanFromRelatedPartiesTextBlockDetails" id="role_DisclosureLoanFromRelatedPartiesTextBlockDetails">
        <link:definition>142 - Disclosure - LOAN FROM RELATED PARTY (Narrative) (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.securitydevicesinternational.com/taxonomy/role/DisclosureSubsequentEventsTextBlockDetails" id="role_DisclosureSubsequentEventsTextBlockDetails">
        <link:definition>143 - Disclosure - SUBSEQUENT EVENTS (Narrative) (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.securitydevicesinternational.com/taxonomy/role/DisclosurePropertyPlantAndEquipmentScheduleOfSignificantAcquisitionsAndDisposalsTextBlockDetails" id="role_DisclosurePropertyPlantAndEquipmentScheduleOfSignificantAcquisitionsAndDisposalsTextBlockDetails">
        <link:definition>144 - Disclosure - Property, Plant and Equipment, Schedule of Significant Acquisitions and Disposals (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.securitydevicesinternational.com/taxonomy/role/DisclosurePropertyPlantAndEquipmentTextBlockDetails" id="role_DisclosurePropertyPlantAndEquipmentTextBlockDetails">
        <link:definition>145 - Disclosure - Schedule of Property, Plant and Equipment (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.securitydevicesinternational.com/taxonomy/role/DisclosureScheduleOfSharebasedCompensationAndAssumptionsAsOfJanuaryFourTwoZeroOneTwoTableTextBlockDetails" id="role_DisclosureScheduleOfSharebasedCompensationAndAssumptionsAsOfJanuaryFourTwoZeroOneTwoTableTextBlockDetails">
        <link:definition>146 - Disclosure - Schedule of Share-based Compensation and Assumptions as of January 4, 2012 (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.securitydevicesinternational.com/taxonomy/role/DisclosureScheduleOfSharebasedCompensationAndAssumptionsAsOfOctoberThreeTwoZeroOneTwoTableTextBlockDetails" id="role_DisclosureScheduleOfSharebasedCompensationAndAssumptionsAsOfOctoberThreeTwoZeroOneTwoTableTextBlockDetails">
        <link:definition>147 - Disclosure - Schedule of Share-based Compensation and Assumptions as of October 3, 2012 (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.securitydevicesinternational.com/taxonomy/role/DisclosureScheduleOfSharebasedCompensationAndAssumptionsAsOfOctoberTwoSixTwoZeroOneTwoTableTextBlockDetails" id="role_DisclosureScheduleOfSharebasedCompensationAndAssumptionsAsOfOctoberTwoSixTwoZeroOneTwoTableTextBlockDetails">
        <link:definition>148 - Disclosure - Schedule of Share-based Compensation and Assumptions as of October 26, 2012 (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.securitydevicesinternational.com/taxonomy/role/DisclosureScheduleOfStockholdersEquityNoteWarrantsOrRightsIssuedOnJanuaryFourTwoZeroOneTwoTableTextBlockDetails" id="role_DisclosureScheduleOfStockholdersEquityNoteWarrantsOrRightsIssuedOnJanuaryFourTwoZeroOneTwoTableTextBlockDetails">
        <link:definition>149 - Disclosure - Schedule of Stockholders' Equity Note, Warrants or Rights Issued on January 4, 2012 (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.securitydevicesinternational.com/taxonomy/role/DisclosureScheduleOfStockholdersEquityNoteWarrantsOrRightsIssuedOnAugustZeroNineTwoZeroOneTwoTableTextBlockDetails" id="role_DisclosureScheduleOfStockholdersEquityNoteWarrantsOrRightsIssuedOnAugustZeroNineTwoZeroOneTwoTableTextBlockDetails">
        <link:definition>150 - Disclosure - Schedule of Stockholders' Equity Note, Warrants or Rights Issued on August 09, 2012 (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.securitydevicesinternational.com/taxonomy/role/DisclosureScheduleOfStockholdersEquityNoteWarrantsOrRightsIssuedOnOctoberThreeTwoZeroOneTwoTableTextBlockDetails" id="role_DisclosureScheduleOfStockholdersEquityNoteWarrantsOrRightsIssuedOnOctoberThreeTwoZeroOneTwoTableTextBlockDetails">
        <link:definition>151 - Disclosure - Schedule of Stockholders' Equity Note, Warrants or Rights Issued on October 3, 2012 (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.securitydevicesinternational.com/taxonomy/role/DisclosureScheduleOfStockholdersEquityNoteWarrantsOrRightsIssuedOnJanuaryThreeZeroTwoZeroOneThreeTableTextBlockDetails" id="role_DisclosureScheduleOfStockholdersEquityNoteWarrantsOrRightsIssuedOnJanuaryThreeZeroTwoZeroOneThreeTableTextBlockDetails">
        <link:definition>152 - Disclosure - Schedule of Stockholders' Equity Note, Warrants or Rights Issued on January 30, 2013 (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.securitydevicesinternational.com/taxonomy/role/DisclosureScheduleOfStockholdersEquityNoteWarrantsOrRightsIssuedOnMarchOneFourTwoZeroOneThreeTableTextBlockDetails" id="role_DisclosureScheduleOfStockholdersEquityNoteWarrantsOrRightsIssuedOnMarchOneFourTwoZeroOneThreeTableTextBlockDetails">
        <link:definition>153 - Disclosure - Schedule of Stockholders' Equity Note, Warrants or Rights Issued on March 14, 2013 (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.securitydevicesinternational.com/taxonomy/role/DisclosureScheduleOfStockholdersEquityNoteWarrantsOrRightsIssuedOnAprilOneTwoTwoZeroOneThreeTableTextBlockDetails" id="role_DisclosureScheduleOfStockholdersEquityNoteWarrantsOrRightsIssuedOnAprilOneTwoTwoZeroOneThreeTableTextBlockDetails">
        <link:definition>154 - Disclosure - Schedule of Stockholders' Equity Note, Warrants or Rights Issued on April 12, 2013 (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.securitydevicesinternational.com/taxonomy/role/DisclosureScheduleOfStockholdersEquityNoteWarrantsOrRightsIssuedOnMayOneFourTwoZeroOneThreeTableTextBlockDetails" id="role_DisclosureScheduleOfStockholdersEquityNoteWarrantsOrRightsIssuedOnMayOneFourTwoZeroOneThreeTableTextBlockDetails">
        <link:definition>155 - Disclosure - Schedule of Stockholders' Equity Note, Warrants or Rights Issued on May 14, 2013 (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:linkbaseRef xlink:type="simple" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:role="http://www.xbrl.org/2003/role/calculationLinkbaseRef" xlink:href="sdev-20130831_cal.xml" xlink:title="Calculation Links, all"/>
      <link:linkbaseRef xlink:type="simple" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:role="http://www.xbrl.org/2003/role/definitionLinkbaseRef" xlink:href="sdev-20130831_def.xml" xlink:title="Definition Links, all"/>
      <link:linkbaseRef xlink:type="simple" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:role="http://www.xbrl.org/2003/role/labelLinkbaseRef" xlink:href="sdev-20130831_lab.xml" xlink:title="Label Links, all"/>
      <link:linkbaseRef xlink:type="simple" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:role="http://www.xbrl.org/2003/role/presentationLinkbaseRef" xlink:href="sdev-20130831_pre.xml" xlink:title="Presentation Links, all"/>
    </xsd:appinfo>
  </xsd:annotation>
  <xsd:import namespace="http://www.xbrl.org/2003/instance" schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd"/>
  <xsd:import namespace="http://www.xbrl.org/2003/linkbase" schemaLocation="http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd"/>
  <xsd:import namespace="http://xbrl.org/2005/xbrldt" schemaLocation="http://www.xbrl.org/2005/xbrldt-2005.xsd"/>
  <xsd:import namespace="http://www.xbrl.org/dtr/type/non-numeric" schemaLocation="http://www.xbrl.org/dtr/type/nonNumeric-2009-12-16.xsd"/>
  <xsd:import namespace="http://www.xbrl.org/dtr/type/numeric" schemaLocation="http://www.xbrl.org/dtr/type/numeric-2009-12-16.xsd"/>
  <xsd:import namespace="http://fasb.org/us-gaap/2013-01-31" schemaLocation="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd"/>
  <xsd:import namespace="http://xbrl.sec.gov/dei/2013-01-31" schemaLocation="http://xbrl.sec.gov/dei/2013/dei-2013-01-31.xsd"/>
  <xsd:import namespace="http://xbrl.sec.gov/country/2013-01-31" schemaLocation="http://xbrl.sec.gov/country/2013/country-2013-01-31.xsd"/>
  <xsd:import namespace="http://xbrl.sec.gov/stpr/2011-01-31" schemaLocation="http://xbrl.sec.gov/stpr/2011/stpr-2011-01-31.xsd"/>
  <xsd:import namespace="http://xbrl.sec.gov/invest/2013-01-31" schemaLocation="http://xbrl.sec.gov/invest/2013/invest-2013-01-31.xsd"/>
  <xsd:import namespace="http://fasb.org/us-types/2013-01-31" schemaLocation="http://xbrl.fasb.org/us-gaap/2013/elts/us-types-2013-01-31.xsd"/>
  <xsd:element name="DocumentAndEntityInformationAbstract" id="sdev_DocumentAndEntityInformationAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="NotesToFinancialStatementsAbstract" id="sdev_NotesToFinancialStatementsAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="FairValueOfOptionsAndWarrants" id="sdev_FairValueOfOptionsAndWarrants" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" xbrli:balance="debit"/>
  <xsd:element name="LossOnCancellationOfCommonStock" id="sdev_LossOnCancellationOfCommonStock" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" xbrli:balance="debit"/>
  <xsd:element name="CancellationOfCommonStock" id="sdev_CancellationOfCommonStock" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" xbrli:balance="credit"/>
  <xsd:element name="DeficitAccumulatedDuringDevelopmentStageMember" id="sdev_DeficitAccumulatedDuringDevelopmentStageMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="IssuanceOfCommonSharesForProfessionalServices" id="sdev_IssuanceOfCommonSharesForProfessionalServices" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" xbrli:balance="credit"/>
  <xsd:element name="IssuanceOfCommonSharesForProfessionalServicesShares" id="sdev_IssuanceOfCommonSharesForProfessionalServicesShares" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="IssuanceOfCommonSharesForCash" id="sdev_IssuanceOfCommonSharesForCash" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" xbrli:balance="credit"/>
  <xsd:element name="IssuanceOfCommonSharesForCashShares" id="sdev_IssuanceOfCommonSharesForCashShares" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="IssuanceOfCommonSharesForCashTwo" id="sdev_IssuanceOfCommonSharesForCashTwo" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" xbrli:balance="credit"/>
  <xsd:element name="IssuanceOfCommonSharesForCashTwoShares" id="sdev_IssuanceOfCommonSharesForCashTwoShares" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="IssuanceOfCommonSharesToConsultantForServices" id="sdev_IssuanceOfCommonSharesToConsultantForServices" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" xbrli:balance="credit"/>
  <xsd:element name="IssuanceOfCommonSharesToConsultantForServicesShares" id="sdev_IssuanceOfCommonSharesToConsultantForServicesShares" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="IssuanceOfCommonSharesForCashThree" id="sdev_IssuanceOfCommonSharesForCashThree" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" xbrli:balance="credit"/>
  <xsd:element name="IssuanceOfCommonSharesForCashThreeShares" id="sdev_IssuanceOfCommonSharesForCashThreeShares" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="IssuanceOfCommonSharesForCashNetOfAgentCommission" id="sdev_IssuanceOfCommonSharesForCashNetOfAgentCommission" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" xbrli:balance="credit"/>
  <xsd:element name="IssuanceOfCommonSharesForCashNetOfAgentCommissionShares" id="sdev_IssuanceOfCommonSharesForCashNetOfAgentCommissionShares" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="StockSubscriptionsReceived" id="sdev_StockSubscriptionsReceived" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" xbrli:balance="debit"/>
  <xsd:element name="IssuanceOfCommonSharesForStock" id="sdev_IssuanceOfCommonSharesForStock" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" xbrli:balance="credit"/>
  <xsd:element name="IssuanceOfCommonSharesForStockShares" id="sdev_IssuanceOfCommonSharesForStockShares" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="SubscriptionsReceivedInPriorYear" id="sdev_SubscriptionsReceivedInPriorYear" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" xbrli:balance="debit"/>
  <xsd:element name="SubscriptionsReceivedInPriorYearShares" id="sdev_SubscriptionsReceivedInPriorYearShares" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="IssuanceOfCommonSharesForCashAndServices" id="sdev_IssuanceOfCommonSharesForCashAndServices" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" xbrli:balance="credit"/>
  <xsd:element name="IssuanceOfCommonSharesForCashAndServicesShares" id="sdev_IssuanceOfCommonSharesForCashAndServicesShares" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="IssuanceOfCommonSharesForCashNetOfExpenses" id="sdev_IssuanceOfCommonSharesForCashNetOfExpenses" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" xbrli:balance="credit"/>
  <xsd:element name="IssuanceOfCommonSharesForCashNetOfExpensesShares" id="sdev_IssuanceOfCommonSharesForCashNetOfExpensesShares" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="CancellationOfStock" id="sdev_CancellationOfStock" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" xbrli:balance="debit"/>
  <xsd:element name="CancellationOfStockShares" id="sdev_CancellationOfStockShares" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="CompensationExpenseForWarrants" id="sdev_CompensationExpenseForWarrants" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" xbrli:balance="debit"/>
  <xsd:element name="IssuanceOfCommonSharesForServices" id="sdev_IssuanceOfCommonSharesForServices" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" xbrli:balance="credit"/>
  <xsd:element name="IssuanceOfCommonSharesForServicesShares" id="sdev_IssuanceOfCommonSharesForServicesShares" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="IssuanceOfCommonSharesForCommonSharesIssuedForStockSubscriptionsReceivedInPriorYear" id="sdev_IssuanceOfCommonSharesForCommonSharesIssuedForStockSubscriptionsReceivedInPriorYear" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" xbrli:balance="credit"/>
  <xsd:element name="IssuanceOfCommonSharesForCommonSharesIssuedForStockSubscriptionsReceivedInPriorYearShares" id="sdev_IssuanceOfCommonSharesForCommonSharesIssuedForStockSubscriptionsReceivedInPriorYearShares" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ConversionOfConvertibleDebtToCommonSharesTwo" id="sdev_ConversionOfConvertibleDebtToCommonSharesTwo" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" xbrli:balance="credit"/>
  <xsd:element name="ConversionOfConvertibleDebtToCommonSharesTwoShares" id="sdev_ConversionOfConvertibleDebtToCommonSharesTwoShares" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="CommonShareReconciliationDifferenceWithTransferAgent" id="sdev_CommonShareReconciliationDifferenceWithTransferAgent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" xbrli:balance="credit"/>
  <xsd:element name="CommonShareReconciliationDifferenceWithTransferAgentShares" id="sdev_CommonShareReconciliationDifferenceWithTransferAgentShares" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="StockPurchaseWarrantsTextBlock" id="sdev_StockPurchaseWarrantsTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="LoanFromRelatedPartiesTextBlock" id="sdev_LoanFromRelatedPartiesTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="SettlementofaccountspayableTextBlock" id="sdev_SettlementofaccountspayableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ConcentrationRiskCreditRiskPolicyTextBlock" id="sdev_ConcentrationRiskCreditRiskPolicyTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="IntellectualPropertyPolicyTextBlock" id="sdev_IntellectualPropertyPolicyTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfSharebasedCompensationAndAssumptionsAsOfJanuaryFourTwoZeroOneTwoTableTextBlock" id="sdev_ScheduleOfSharebasedCompensationAndAssumptionsAsOfJanuaryFourTwoZeroOneTwoTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfSharebasedCompensationAndAssumptionsAsOfOctoberThreeTwoZeroOneTwoTableTextBlock" id="sdev_ScheduleOfSharebasedCompensationAndAssumptionsAsOfOctoberThreeTwoZeroOneTwoTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfSharebasedCompensationAndAssumptionsAsOfOctoberTwoSixTwoZeroOneTwoTableTextBlock" id="sdev_ScheduleOfSharebasedCompensationAndAssumptionsAsOfOctoberTwoSixTwoZeroOneTwoTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfSharebasedCompensationStockOptionsTableTextBlock" id="sdev_ScheduleOfSharebasedCompensationStockOptionsTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="SharebasedCompensationArrangementBySharebasedPaymentAwardRemainingContractualTermOutstandingAndExercisableTableTextBlock" id="sdev_SharebasedCompensationArrangementBySharebasedPaymentAwardRemainingContractualTermOutstandingAndExercisableTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfStockholdersEquityNoteWarrantsOrRightsIssuedOnJanuaryFourTwoZeroOneTwoTableTextBlock" id="sdev_ScheduleOfStockholdersEquityNoteWarrantsOrRightsIssuedOnJanuaryFourTwoZeroOneTwoTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfStockholdersEquityNoteWarrantsOrRightsIssuedOnAugustZeroNineTwoZeroOneTwoTableTextBlock" id="sdev_ScheduleOfStockholdersEquityNoteWarrantsOrRightsIssuedOnAugustZeroNineTwoZeroOneTwoTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfStockholdersEquityNoteWarrantsOrRightsIssuedOnOctoberThreeTwoZeroOneTwoTableTextBlock" id="sdev_ScheduleOfStockholdersEquityNoteWarrantsOrRightsIssuedOnOctoberThreeTwoZeroOneTwoTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfStockholdersEquityNoteWarrantsOrRightsIssuedOnJanuaryThreeZeroTwoZeroOneThreeTableTextBlock" id="sdev_ScheduleOfStockholdersEquityNoteWarrantsOrRightsIssuedOnJanuaryThreeZeroTwoZeroOneThreeTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfStockholdersEquityNoteWarrantsOrRightsIssuedOnMarchOneFourTwoZeroOneThreeTableTextBlock" id="sdev_ScheduleOfStockholdersEquityNoteWarrantsOrRightsIssuedOnMarchOneFourTwoZeroOneThreeTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfStockholdersEquityNoteWarrantsOrRightsIssuedOnAprilOneTwoTwoZeroOneThreeTableTextBlock" id="sdev_ScheduleOfStockholdersEquityNoteWarrantsOrRightsIssuedOnAprilOneTwoTwoZeroOneThreeTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfStockholdersEquityNoteWarrantsOrRightsIssuedOnMayOneFourTwoZeroOneThreeTableTextBlock" id="sdev_ScheduleOfStockholdersEquityNoteWarrantsOrRightsIssuedOnMayOneFourTwoZeroOneThreeTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfStockholdersEquityNoteWarrantsOrRightsActivityTextBlock" id="sdev_ScheduleOfStockholdersEquityNoteWarrantsOrRightsActivityTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfStockholdersEquityNoteWarrantsOrRightsweightedAverageRemainingContractualTermOutstandingAndExercisableTableTextBlock" id="sdev_ScheduleOfStockholdersEquityNoteWarrantsOrRightsweightedAverageRemainingContractualTermOutstandingAndExercisableTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="NatureOfOperationsAndGoingConcernZeroOneSevenNineSevenTwoTwoFiveSevenZZwZeroVhXTwozJPl" id="sdev_NatureOfOperationsAndGoingConcernZeroOneSevenNineSevenTwoTwoFiveSevenZZwZeroVhXTwozJPl" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="NatureOfOperationsAndGoingConcernZeroOneSevenNineSevenTwoTwoFiveSevenNinegGTwoRdcSixzsTB" id="sdev_NatureOfOperationsAndGoingConcernZeroOneSevenNineSevenTwoTwoFiveSevenNinegGTwoRdcSixzsTB" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="NatureOfOperationsAndGoingConcernZeroOneSevenNineSevenTwoTwoFiveSevenHSevenZZeroCNinePJzfts" id="sdev_NatureOfOperationsAndGoingConcernZeroOneSevenNineSevenTwoTwoFiveSevenHSevenZZeroCNinePJzfts" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="NatureOfOperationsAndGoingConcernZeroOneSevenNineSevenTwoTwoFiveSevenwsBzSevenOneWmQrsf" id="sdev_NatureOfOperationsAndGoingConcernZeroOneSevenNineSevenTwoTwoFiveSevenwsBzSevenOneWmQrsf" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="NatureOfOperationsAndGoingConcernZeroOneSevenNineSevenTwoTwoFiveSevenxtvfFourvSKEightOnewt" id="sdev_NatureOfOperationsAndGoingConcernZeroOneSevenNineSevenTwoTwoFiveSevenxtvfFourvSKEightOnewt" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="NatureOfOperationsAndGoingConcernZeroOneSevenNineSevenTwoTwoFiveSevenylkcfmTwofVNineml" id="sdev_NatureOfOperationsAndGoingConcernZeroOneSevenNineSevenTwoTwoFiveSevenylkcfmTwofVNineml" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="NatureOfOperationsAndGoingConcernZeroOneSevenNineSevenTwoTwoFiveSevenprrfNDgGSTwoKg" id="sdev_NatureOfOperationsAndGoingConcernZeroOneSevenNineSevenTwoTwoFiveSevenprrfNDgGSTwoKg" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="NatureOfOperationsAndGoingConcernZeroOneSevenNineSevenTwoTwoFiveSevenZeromtygTXnOneHCSeven" id="sdev_NatureOfOperationsAndGoingConcernZeroOneSevenNineSevenTwoTwoFiveSevenZeromtygTXnOneHCSeven" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="NatureOfOperationsAndGoingConcernZeroOneSevenNineSevenTwoTwoFiveSevenSevenkBkrcNBNineXsFour" id="sdev_NatureOfOperationsAndGoingConcernZeroOneSevenNineSevenTwoTwoFiveSevenSevenkBkrcNBNineXsFour" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="NatureOfOperationsAndGoingConcernZeroOneSevenNineSevenTwoTwoFiveSevenlDlXFcnfNJxp" id="sdev_NatureOfOperationsAndGoingConcernZeroOneSevenNineSevenTwoTwoFiveSevenlDlXFcnfNJxp" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="NatureOfOperationsAndGoingConcernZeroOneSevenNineSevenTwoTwoFiveSevenJSevenZNineTRwzGzmx" id="sdev_NatureOfOperationsAndGoingConcernZeroOneSevenNineSevenTwoTwoFiveSevenJSevenZNineTRwzGzmx" type="xbrli:pureItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="NatureOfOperationsAndGoingConcernZeroOneSevenNineSevenTwoTwoFiveSevenmmxGDJpRTQwc" id="sdev_NatureOfOperationsAndGoingConcernZeroOneSevenNineSevenTwoTwoFiveSevenmmxGDJpRTQwc" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="NatureOfOperationsAndGoingConcernZeroOneSevenNineSevenTwoTwoFiveSevensWFourvwgGrmzSevens" id="sdev_NatureOfOperationsAndGoingConcernZeroOneSevenNineSevenTwoTwoFiveSevensWFourvwgGrmzSevens" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevenlnkqsPZerorDBzEight" id="sdev_CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevenlnkqsPZerorDBzEight" type="xbrli:pureItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevenNSMXxtNqscPk" id="sdev_CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevenNSMXxtNqscPk" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevenFourTHTZNineZGmtGN" id="sdev_CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevenFourTHTZNineZGmtGN" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="CapitalStockZeroOneSevenNineSevenTwoTwoFiveSeventvNinetTJCDVTwoRk" id="sdev_CapitalStockZeroOneSevenNineSevenTwoTwoFiveSeventvNinetTJCDVTwoRk" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevenThreeSwSevenQTwoSeventBGCz" id="sdev_CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevenThreeSwSevenQTwoSeventBGCz" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevenSixPMTSevenlNineSlfwThree" id="sdev_CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevenSixPMTSevenlNineSlfwThree" type="xbrli:pureItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevennZNineBKkSevenPRTZTwo" id="sdev_CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevennZNineBKkSevenPRTZTwo" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevendwDXBbHcThreeQTX" id="sdev_CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevendwDXBbHcThreeQTX" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevenNineZerofKOnevFourhfSevenWP" id="sdev_CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevenNineZerofKOnevFourhfSevenWP" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevenPrvThreeBNinesTTwoThreehR" id="sdev_CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevenPrvThreeBNinesTTwoThreehR" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevenQEightsJryGNineyPLs" id="sdev_CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevenQEightsJryGNineyPLs" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevenbFivehzRpJnMFySix" id="sdev_CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevenbFivehzRpJnMFySix" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevenzNrKWPMFivezNineSixz" id="sdev_CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevenzNrKWPMFivezNineSixz" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevenlGpLddTNineSixlTwog" id="sdev_CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevenlGpLddTNineSixlTwog" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevenRBSixXGlFivefQdsP" id="sdev_CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevenRBSixXGlFivefQdsP" type="num:perShareItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevenQNdThreeTDnMEightKFiveB" id="sdev_CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevenQNdThreeTDnMEightKFiveB" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevencdKdhZdyqSevenqz" id="sdev_CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevencdKdhZdyqSevenqz" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevenzbFourPKnSevenSkzFg" id="sdev_CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevenzbFourPKnSevenSkzFg" type="xbrli:pureItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevenFRZhGHHWllJNine" id="sdev_CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevenFRZhGHHWllJNine" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevenwwBNineRTpRFourhKF" id="sdev_CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevenwwBNineRTpRFourhKF" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevenXWGxROnesGzRTwoSeven" id="sdev_CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevenXWGxROnesGzRTwoSeven" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="CapitalStockZeroOneSevenNineSevenTwoTwoFiveSeventVMxTZeroJXzSnt" id="sdev_CapitalStockZeroOneSevenNineSevenTwoTwoFiveSeventVMxTZeroJXzSnt" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevenyvWzDktmhKpP" id="sdev_CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevenyvWzDktmhKpP" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevenTTcSThreeRgDwyNineT" id="sdev_CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevenTTcSThreeRgDwyNineT" type="xbrli:pureItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevenTwoFHSevenmTwoSJFourFourxw" id="sdev_CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevenTwoFHSevenmTwoSJFourFourxw" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevenprSpSixRBQsZhSeven" id="sdev_CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevenprSpSixRBQsZhSeven" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevenyFSvEightwgrTMSd" id="sdev_CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevenyFSvEightwgrTMSd" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevenDCFourTCxzzhTwc" id="sdev_CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevenDCFourTCxzzhTwc" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevenqPwTOnepMRxqXN" id="sdev_CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevenqPwTOnepMRxqXN" type="xbrli:pureItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevenEightZeroWbDdSNqNJD" id="sdev_CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevenEightZeroWbDdSNqNJD" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevenFgWHVSqOneFiveZxF" id="sdev_CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevenFgWHVSqOneFiveZxF" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevendsFiveOneThreesHcbKcT" id="sdev_CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevendsFiveOneThreesHcbKcT" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevenLhxZMSixTwofdnNy" id="sdev_CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevenLhxZMSixTwofdnNy" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevenqJGrZeroOneHSevenRpzc" id="sdev_CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevenqJGrZeroOneHSevenRpzc" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevenHpKpkyMRDKKZero" id="sdev_CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevenHpKpkyMRDKKZero" type="num:perShareItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevenFourWprpxmltrEightg" id="sdev_CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevenFourWprpxmltrEightg" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevenLZTwoTwoSTWrThreezGB" id="sdev_CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevenLZTwoTwoSTWrThreezGB" type="num:perShareItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevenyfhmCrttsEightkg" id="sdev_CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevenyfhmCrttsEightkg" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevensSxZeroszXSevenFourlEightd" id="sdev_CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevensSxZeroszXSevenFourlEightd" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevenszmwEightGKZeroHEightSevenQ" id="sdev_CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevenszmwEightGKZeroHEightSevenQ" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevenHbhlPqPHWDSNine" id="sdev_CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevenHbhlPqPHWDSNine" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevenJfvXxNinemCQTQQ" id="sdev_CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevenJfvXxNinemCQTQQ" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevenJrlWVEightbxFJFl" id="sdev_CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevenJrlWVEightbxFJFl" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevenNineSixcGEightprlRSixtP" id="sdev_CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevenNineSixcGEightprlRSixtP" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevenRFiveTrTwoNPQnRwC" id="sdev_CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevenRFiveTrTwoNPQnRwC" type="num:perShareItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevenqVgkJrQyLMKZ" id="sdev_CapitalStockZeroOneSevenNineSevenTwoTwoFiveSevenqVgkJrQyLMKZ" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="StockBasedCompensationZeroOneSevenNineSevenTwoTwoFiveSevenWtmTtyvrGvRt" id="sdev_StockBasedCompensationZeroOneSevenNineSevenTwoTwoFiveSevenWtmTtyvrGvRt" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="StockBasedCompensationZeroOneSevenNineSevenTwoTwoFiveSevenzhFvFivetdSevenJcsG" id="sdev_StockBasedCompensationZeroOneSevenNineSevenTwoTwoFiveSevenzhFvFivetdSevenJcsG" type="xbrli:pureItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="StockBasedCompensationZeroOneSevenNineSevenTwoTwoFiveSevenkQTwoMQcXqPJrp" id="sdev_StockBasedCompensationZeroOneSevenNineSevenTwoTwoFiveSevenkQTwoMQcXqPJrp" type="xbrli:pureItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="StockBasedCompensationZeroOneSevenNineSevenTwoTwoFiveSevenRZFiveTwoZmkCGbFz" id="sdev_StockBasedCompensationZeroOneSevenNineSevenTwoTwoFiveSevenRZFiveTwoZmkCGbFz" type="xbrli:pureItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="StockBasedCompensationZeroOneSevenNineSevenTwoTwoFiveSevenDQpThreeXFiveBgyVNinem" id="sdev_StockBasedCompensationZeroOneSevenNineSevenTwoTwoFiveSevenDQpThreeXFiveBgyVNinem" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="StockBasedCompensationZeroOneSevenNineSevenTwoTwoFiveSevenmWFourBgKFwtnql" id="sdev_StockBasedCompensationZeroOneSevenNineSevenTwoTwoFiveSevenmWFourBgKFwtnql" type="num:percentItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="StockBasedCompensationZeroOneSevenNineSevenTwoTwoFiveSevenkDTEightCzSixGwFivety" id="sdev_StockBasedCompensationZeroOneSevenNineSevenTwoTwoFiveSevenkDTEightCzSixGwFivety" type="xbrli:pureItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="StockBasedCompensationZeroOneSevenNineSevenTwoTwoFiveSevenPThreeMWTLhnHZeroZeroc" id="sdev_StockBasedCompensationZeroOneSevenNineSevenTwoTwoFiveSevenPThreeMWTLhnHZeroZeroc" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="StockBasedCompensationZeroOneSevenNineSevenTwoTwoFiveSevenCFivegrHGypCbZZero" id="sdev_StockBasedCompensationZeroOneSevenNineSevenTwoTwoFiveSevenCFivegrHGypCbZZero" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="StockBasedCompensationZeroOneSevenNineSevenTwoTwoFiveSevenXEightGgqnzFrFivews" id="sdev_StockBasedCompensationZeroOneSevenNineSevenTwoTwoFiveSevenXEightGgqnzFrFivews" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="StockBasedCompensationZeroOneSevenNineSevenTwoTwoFiveSevenhVBkqTncTwoXmD" id="sdev_StockBasedCompensationZeroOneSevenNineSevenTwoTwoFiveSevenhVBkqTncTwoXmD" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="StockBasedCompensationZeroOneSevenNineSevenTwoTwoFiveSevenWSixLKQnNmwNMd" id="sdev_StockBasedCompensationZeroOneSevenNineSevenTwoTwoFiveSevenWSixLKQnNmwNMd" type="num:perShareItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="StockBasedCompensationZeroOneSevenNineSevenTwoTwoFiveSevendVwGFyRVzLThreeB" id="sdev_StockBasedCompensationZeroOneSevenNineSevenTwoTwoFiveSevendVwGFyRVzLThreeB" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="StockBasedCompensationZeroOneSevenNineSevenTwoTwoFiveSevenTTBHNineyRhslSixg" id="sdev_StockBasedCompensationZeroOneSevenNineSevenTwoTwoFiveSevenTTBHNineyRhslSixg" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="StockBasedCompensationZeroOneSevenNineSevenTwoTwoFiveSevenVTwoGlwtswsrFk" id="sdev_StockBasedCompensationZeroOneSevenNineSevenTwoTwoFiveSevenVTwoGlwtswsrFk" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="StockBasedCompensationZeroOneSevenNineSevenTwoTwoFiveSevenVmsywbstJFbn" id="sdev_StockBasedCompensationZeroOneSevenNineSevenTwoTwoFiveSevenVmsywbstJFbn" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="StockBasedCompensationZeroOneSevenNineSevenTwoTwoFiveSevenGNOnerFmNineOneWRhM" id="sdev_StockBasedCompensationZeroOneSevenNineSevenTwoTwoFiveSevenGNOnerFmNineOneWRhM" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="StockBasedCompensationZeroOneSevenNineSevenTwoTwoFiveSevenTwoThreemvsClEightrkSixM" id="sdev_StockBasedCompensationZeroOneSevenNineSevenTwoTwoFiveSevenTwoThreemvsClEightrkSixM" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="StockBasedCompensationZeroOneSevenNineSevenTwoTwoFiveSevenhWRRcxVgNinevMF" id="sdev_StockBasedCompensationZeroOneSevenNineSevenTwoTwoFiveSevenhWRRcxVgNinevMF" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="StockBasedCompensationZeroOneSevenNineSevenTwoTwoFiveSevenEighthXnpsqPOneSevenpR" id="sdev_StockBasedCompensationZeroOneSevenNineSevenTwoTwoFiveSevenEighthXnpsqPOneSevenpR" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="StockBasedCompensationZeroOneSevenNineSevenTwoTwoFiveSevenQdSixTThreeThreeByLdyh" id="sdev_StockBasedCompensationZeroOneSevenNineSevenTwoTwoFiveSevenQdSixTThreeThreeByLdyh" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="StockBasedCompensationZeroOneSevenNineSevenTwoTwoFiveSevenSixbZTQltZerowbzK" id="sdev_StockBasedCompensationZeroOneSevenNineSevenTwoTwoFiveSevenSixbZTQltZerowbzK" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="StockBasedCompensationZeroOneSevenNineSevenTwoTwoFiveSevenTwoNineNineSixQJNsmNPB" id="sdev_StockBasedCompensationZeroOneSevenNineSevenTwoTwoFiveSevenTwoNineNineSixQJNsmNPB" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="StockBasedCompensationZeroOneSevenNineSevenTwoTwoFiveSevenJSevenSixBOneVZRZeroThreeFourk" id="sdev_StockBasedCompensationZeroOneSevenNineSevenTwoTwoFiveSevenJSevenSixBOneVZRZeroThreeFourk" type="num:perShareItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="StockBasedCompensationZeroOneSevenNineSevenTwoTwoFiveSevenhTwoZeroPBWmRZerogNineF" id="sdev_StockBasedCompensationZeroOneSevenNineSevenTwoTwoFiveSevenhTwoZeroPBWmRZerogNineF" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="StockBasedCompensationZeroOneSevenNineSevenTwoTwoFiveSevenzDGPEightHRvEightqEightFive" id="sdev_StockBasedCompensationZeroOneSevenNineSevenTwoTwoFiveSevenzDGPEightHRvEightqEightFive" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="StockBasedCompensationZeroOneSevenNineSevenTwoTwoFiveSevencNtFivenxmzHDQJ" id="sdev_StockBasedCompensationZeroOneSevenNineSevenTwoTwoFiveSevencNtFivenxmzHDQJ" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="StockBasedCompensationZeroOneSevenNineSevenTwoTwoFiveSevenJrJzVEightCgThreewRT" id="sdev_StockBasedCompensationZeroOneSevenNineSevenTwoTwoFiveSevenJrJzVEightCgThreewRT" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="StockBasedCompensationZeroOneSevenNineSevenTwoTwoFiveSevenBZPEightFourgVCEightNFx" id="sdev_StockBasedCompensationZeroOneSevenNineSevenTwoTwoFiveSevenBZPEightFourgVCEightNFx" type="num:perShareItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="StockBasedCompensationZeroOneSevenNineSevenTwoTwoFiveSevenVWBymcnMGStx" id="sdev_StockBasedCompensationZeroOneSevenNineSevenTwoTwoFiveSevenVWBymcnMGStx" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="StockBasedCompensationZeroOneSevenNineSevenTwoTwoFiveSevenKGBLJhmsFourZerovFive" id="sdev_StockBasedCompensationZeroOneSevenNineSevenTwoTwoFiveSevenKGBLJhmsFourZerovFive" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="StockPurchaseWarrantsZeroOneSevenNineSevenTwoTwoFiveSevenBfcFourJVpyQFDb" id="sdev_StockPurchaseWarrantsZeroOneSevenNineSevenTwoTwoFiveSevenBfcFourJVpyQFDb" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="StockPurchaseWarrantsZeroOneSevenNineSevenTwoTwoFiveSevenmMTwoLcSevennXEightNGF" id="sdev_StockPurchaseWarrantsZeroOneSevenNineSevenTwoTwoFiveSevenmMTwoLcSevennXEightNGF" type="num:perShareItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="StockPurchaseWarrantsZeroOneSevenNineSevenTwoTwoFiveSevenZzSevenmzTwotmHNCEight" id="sdev_StockPurchaseWarrantsZeroOneSevenNineSevenTwoTwoFiveSevenZzSevenmzTwotmHNCEight" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="StockPurchaseWarrantsZeroOneSevenNineSevenTwoTwoFiveSevenpwTmmvbdVNineBh" id="sdev_StockPurchaseWarrantsZeroOneSevenNineSevenTwoTwoFiveSevenpwTmmvbdVNineBh" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="StockPurchaseWarrantsZeroOneSevenNineSevenTwoTwoFiveSevenmTwocgTBXypEightPy" id="sdev_StockPurchaseWarrantsZeroOneSevenNineSevenTwoTwoFiveSevenmTwocgTBXypEightPy" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="StockPurchaseWarrantsZeroOneSevenNineSevenTwoTwoFiveSevenTcWEightBZeroVdmptFive" id="sdev_StockPurchaseWarrantsZeroOneSevenNineSevenTwoTwoFiveSevenTcWEightBZeroVdmptFive" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="StockPurchaseWarrantsZeroOneSevenNineSevenTwoTwoFiveSevenNGHQFourFJdFourGDk" id="sdev_StockPurchaseWarrantsZeroOneSevenNineSevenTwoTwoFiveSevenNGHQFourFJdFourGDk" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="StockPurchaseWarrantsZeroOneSevenNineSevenTwoTwoFiveSevenFSFoursnPGfFsmT" id="sdev_StockPurchaseWarrantsZeroOneSevenNineSevenTwoTwoFiveSevenFSFoursnPGfFsmT" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="StockPurchaseWarrantsZeroOneSevenNineSevenTwoTwoFiveSevenccFourdQVRcXMVd" id="sdev_StockPurchaseWarrantsZeroOneSevenNineSevenTwoTwoFiveSevenccFourdQVRcXMVd" type="num:perShareItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="StockPurchaseWarrantsZeroOneSevenNineSevenTwoTwoFiveSevenRPMNineLypZTtqOne" id="sdev_StockPurchaseWarrantsZeroOneSevenNineSevenTwoTwoFiveSevenRPMNineLypZTtqOne" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="StockPurchaseWarrantsZeroOneSevenNineSevenTwoTwoFiveSevensMQmWXRrsgTr" id="sdev_StockPurchaseWarrantsZeroOneSevenNineSevenTwoTwoFiveSevensMQmWXRrsgTr" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="StockPurchaseWarrantsZeroOneSevenNineSevenTwoTwoFiveSevenBSevenrsDFiveFTwowJSG" id="sdev_StockPurchaseWarrantsZeroOneSevenNineSevenTwoTwoFiveSevenBSevenrsDFiveFTwowJSG" type="num:perShareItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="StockPurchaseWarrantsZeroOneSevenNineSevenTwoTwoFiveSeventhHTwonmFFWSevenzv" id="sdev_StockPurchaseWarrantsZeroOneSevenNineSevenTwoTwoFiveSeventhHTwonmFFWSevenzv" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="StockPurchaseWarrantsZeroOneSevenNineSevenTwoTwoFiveSevenCcEightKbFvSevenNTwozTwo" id="sdev_StockPurchaseWarrantsZeroOneSevenNineSevenTwoTwoFiveSevenCcEightKbFvSevenNTwozTwo" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="StockPurchaseWarrantsZeroOneSevenNineSevenTwoTwoFiveSevenyZFScppJnWbm" id="sdev_StockPurchaseWarrantsZeroOneSevenNineSevenTwoTwoFiveSevenyZFScppJnWbm" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="StockPurchaseWarrantsZeroOneSevenNineSevenTwoTwoFiveSevenCcOnenffFTVVNNine" id="sdev_StockPurchaseWarrantsZeroOneSevenNineSevenTwoTwoFiveSevenCcOnenffFTVVNNine" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="StockPurchaseWarrantsZeroOneSevenNineSevenTwoTwoFiveSevenqgrhOneWywlTNineG" id="sdev_StockPurchaseWarrantsZeroOneSevenNineSevenTwoTwoFiveSevenqgrhOneWywlTNineG" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="StockPurchaseWarrantsZeroOneSevenNineSevenTwoTwoFiveSevenTwoEightKbFmTwolEightPGEight" id="sdev_StockPurchaseWarrantsZeroOneSevenNineSevenTwoTwoFiveSevenTwoEightKbFmTwolEightPGEight" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="StockPurchaseWarrantsZeroOneSevenNineSevenTwoTwoFiveSevenzDFEightXRGFourTwonbOne" id="sdev_StockPurchaseWarrantsZeroOneSevenNineSevenTwoTwoFiveSevenzDFEightXRGFourTwonbOne" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="StockPurchaseWarrantsZeroOneSevenNineSevenTwoTwoFiveSevennpNinezxvSevenzwzZeroV" id="sdev_StockPurchaseWarrantsZeroOneSevenNineSevenTwoTwoFiveSevennpNinezxvSevenzwzZeroV" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="StockPurchaseWarrantsZeroOneSevenNineSevenTwoTwoFiveSevenEightVnGcCFiveBSevenncp" id="sdev_StockPurchaseWarrantsZeroOneSevenNineSevenTwoTwoFiveSevenEightVnGcCFiveBSevenncp" type="num:perShareItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="StockPurchaseWarrantsZeroOneSevenNineSevenTwoTwoFiveSevenKMkmgLgLqBmV" id="sdev_StockPurchaseWarrantsZeroOneSevenNineSevenTwoTwoFiveSevenKMkmgLgLqBmV" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="StockPurchaseWarrantsZeroOneSevenNineSevenTwoTwoFiveSevenLWSMTQRyThreeFiveHw" id="sdev_StockPurchaseWarrantsZeroOneSevenNineSevenTwoTwoFiveSevenLWSMTQRyThreeFiveHw" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="StockPurchaseWarrantsZeroOneSevenNineSevenTwoTwoFiveSevenfFOnevyMdBCBRd" id="sdev_StockPurchaseWarrantsZeroOneSevenNineSevenTwoTwoFiveSevenfFOnevyMdBCBRd" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="StockPurchaseWarrantsZeroOneSevenNineSevenTwoTwoFiveSevenrHLTFWwdSixJxNine" id="sdev_StockPurchaseWarrantsZeroOneSevenNineSevenTwoTwoFiveSevenrHLTFWwdSixJxNine" type="num:perShareItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="StockPurchaseWarrantsZeroOneSevenNineSevenTwoTwoFiveSevenTwoRkpSFWGWFivexC" id="sdev_StockPurchaseWarrantsZeroOneSevenNineSevenTwoTwoFiveSevenTwoRkpSFWGWFivexC" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="StockPurchaseWarrantsZeroOneSevenNineSevenTwoTwoFiveSevenfSevenTwohkyzPTSTt" id="sdev_StockPurchaseWarrantsZeroOneSevenNineSevenTwoTwoFiveSevenfSevenTwohkyzPTSTt" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="StockPurchaseWarrantsZeroOneSevenNineSevenTwoTwoFiveSevenhsHnsVXOnerXWT" id="sdev_StockPurchaseWarrantsZeroOneSevenNineSevenTwoTwoFiveSevenhsHnsVXOnerXWT" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="StockPurchaseWarrantsZeroOneSevenNineSevenTwoTwoFiveSevenBygEightrwBVFivefSK" id="sdev_StockPurchaseWarrantsZeroOneSevenNineSevenTwoTwoFiveSevenBygEightrwBVFivefSK" type="num:perShareItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="StockPurchaseWarrantsZeroOneSevenNineSevenTwoTwoFiveSevenTHTwolSixTJcMKqn" id="sdev_StockPurchaseWarrantsZeroOneSevenNineSevenTwoTwoFiveSevenTHTwolSixTJcMKqn" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="StockPurchaseWarrantsZeroOneSevenNineSevenTwoTwoFiveSevennhJFiveSVThreekSZnH" id="sdev_StockPurchaseWarrantsZeroOneSevenNineSevenTwoTwoFiveSevennhJFiveSVThreekSZnH" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="StockPurchaseWarrantsZeroOneSevenNineSevenTwoTwoFiveSevenFourTvpdFivevlgTLK" id="sdev_StockPurchaseWarrantsZeroOneSevenNineSevenTwoTwoFiveSevenFourTvpdFivevlgTLK" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="StockPurchaseWarrantsZeroOneSevenNineSevenTwoTwoFiveSevenQXnSevenhCqcQSevenTK" id="sdev_StockPurchaseWarrantsZeroOneSevenNineSevenTwoTwoFiveSevenQXnSevenhCqcQSevenTK" type="num:perShareItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="StockPurchaseWarrantsZeroOneSevenNineSevenTwoTwoFiveSevenSevenGvzVFivezdKyPEight" id="sdev_StockPurchaseWarrantsZeroOneSevenNineSevenTwoTwoFiveSevenSevenGvzVFivezdKyPEight" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="StockPurchaseWarrantsZeroOneSevenNineSevenTwoTwoFiveSevenkNbEightSZeroBqZLLG" id="sdev_StockPurchaseWarrantsZeroOneSevenNineSevenTwoTwoFiveSevenkNbEightSZeroBqZLLG" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="StockPurchaseWarrantsZeroOneSevenNineSevenTwoTwoFiveSevenSixKBJFourrNTwoQsrS" id="sdev_StockPurchaseWarrantsZeroOneSevenNineSevenTwoTwoFiveSevenSixKBJFourrNTwoQsrS" type="xbrli:pureItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="StockPurchaseWarrantsZeroOneSevenNineSevenTwoTwoFiveSevennmKcZeroZgFiveHJQc" id="sdev_StockPurchaseWarrantsZeroOneSevenNineSevenTwoTwoFiveSevennmKcZeroZgFiveHJQc" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="StockPurchaseWarrantsZeroOneSevenNineSevenTwoTwoFiveSevenSTNQXMSevenEightbhpc" id="sdev_StockPurchaseWarrantsZeroOneSevenNineSevenTwoTwoFiveSevenSTNQXMSevenEightbhpc" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="StockPurchaseWarrantsZeroOneSevenNineSevenTwoTwoFiveSevenTPfgPDXNzTNn" id="sdev_StockPurchaseWarrantsZeroOneSevenNineSevenTwoTwoFiveSevenTPfgPDXNzTNn" type="xbrli:pureItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="StockPurchaseWarrantsZeroOneSevenNineSevenTwoTwoFiveSeventQFourZerocbTwoQwmcD" id="sdev_StockPurchaseWarrantsZeroOneSevenNineSevenTwoTwoFiveSeventQFourZerocbTwoQwmcD" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="StockPurchaseWarrantsZeroOneSevenNineSevenTwoTwoFiveSevenGMOneMZWCRFourTfp" id="sdev_StockPurchaseWarrantsZeroOneSevenNineSevenTwoTwoFiveSevenGMOneMZWCRFourTfp" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="RelatedPartyTransactionsZeroOneSevenNineSevenTwoTwoFiveSevenFcRTwoxLPSixzhTZero" id="sdev_RelatedPartyTransactionsZeroOneSevenNineSevenTwoTwoFiveSevenFcRTwoxLPSixzhTZero" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="RelatedPartyTransactionsZeroOneSevenNineSevenTwoTwoFiveSevenWRKRNSixDSwlcd" id="sdev_RelatedPartyTransactionsZeroOneSevenNineSevenTwoTwoFiveSevenWRKRNSixDSwlcd" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="RelatedPartyTransactionsZeroOneSevenNineSevenTwoTwoFiveSevenCJNFourtFNTwovNineRR" id="sdev_RelatedPartyTransactionsZeroOneSevenNineSevenTwoTwoFiveSevenCJNFourtFNTwovNineRR" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="RelatedPartyTransactionsZeroOneSevenNineSevenTwoTwoFiveSevenFlgbCLZEightmFiveKd" id="sdev_RelatedPartyTransactionsZeroOneSevenNineSevenTwoTwoFiveSevenFlgbCLZEightmFiveKd" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="RelatedPartyTransactionsZeroOneSevenNineSevenTwoTwoFiveSevenXHtThreeFcLqNineNinexx" id="sdev_RelatedPartyTransactionsZeroOneSevenNineSevenTwoTwoFiveSevenXHtThreeFcLqNineNinexx" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="RelatedPartyTransactionsZeroOneSevenNineSevenTwoTwoFiveSevenNFiveMNinedtSixxNKRSeven" id="sdev_RelatedPartyTransactionsZeroOneSevenNineSevenTwoTwoFiveSevenNFiveMNinedtSixxNKRSeven" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="RelatedPartyTransactionsZeroOneSevenNineSevenTwoTwoFiveSevenHkBDhkSrBTKt" id="sdev_RelatedPartyTransactionsZeroOneSevenNineSevenTwoTwoFiveSevenHkBDhkSrBTKt" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="RelatedPartyTransactionsZeroOneSevenNineSevenTwoTwoFiveSevenGghOneVFourmBEightSevenMJ" id="sdev_RelatedPartyTransactionsZeroOneSevenNineSevenTwoTwoFiveSevenGghOneVFourmBEightSevenMJ" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="RelatedPartyTransactionsZeroOneSevenNineSevenTwoTwoFiveSevenXrEightBLZSevenFourFSixyw" id="sdev_RelatedPartyTransactionsZeroOneSevenNineSevenTwoTwoFiveSevenXrEightBLZSevenFourFSixyw" type="num:perShareItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="RelatedPartyTransactionsZeroOneSevenNineSevenTwoTwoFiveSevenMHEightkNineFiveSevenGlXwFour" id="sdev_RelatedPartyTransactionsZeroOneSevenNineSevenTwoTwoFiveSevenMHEightkNineFiveSevenGlXwFour" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="RelatedPartyTransactionsZeroOneSevenNineSevenTwoTwoFiveSevenSVxQQTwosfBvTJ" id="sdev_RelatedPartyTransactionsZeroOneSevenNineSevenTwoTwoFiveSevenSVxQQTwosfBvTJ" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="RelatedPartyTransactionsZeroOneSevenNineSevenTwoTwoFiveSevenzFiverlVqFlzZerofC" id="sdev_RelatedPartyTransactionsZeroOneSevenNineSevenTwoTwoFiveSevenzFiverlVqFlzZerofC" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="RelatedPartyTransactionsZeroOneSevenNineSevenTwoTwoFiveSevenkdlwnbLCKBCX" id="sdev_RelatedPartyTransactionsZeroOneSevenNineSevenTwoTwoFiveSevenkdlwnbLCKBCX" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="RelatedPartyTransactionsZeroOneSevenNineSevenTwoTwoFiveSevenwMzgSevenSVrbyxG" id="sdev_RelatedPartyTransactionsZeroOneSevenNineSevenTwoTwoFiveSevenwMzgSevenSVrbyxG" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="RelatedPartyTransactionsZeroOneSevenNineSevenTwoTwoFiveSevendrdyOnecGXThreefSw" id="sdev_RelatedPartyTransactionsZeroOneSevenNineSevenTwoTwoFiveSevendrdyOnecGXThreefSw" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="RelatedPartyTransactionsZeroOneSevenNineSevenTwoTwoFiveSevenTTJFourHDbnTwoTwolSix" id="sdev_RelatedPartyTransactionsZeroOneSevenNineSevenTwoTwoFiveSevenTTJFourHDbnTwoTwolSix" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="RelatedPartyTransactionsZeroOneSevenNineSevenTwoTwoFiveSevenKWGqpJtsTFiveVs" id="sdev_RelatedPartyTransactionsZeroOneSevenNineSevenTwoTwoFiveSevenKWGqpJtsTFiveVs" type="num:perShareItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="RelatedPartyTransactionsZeroOneSevenNineSevenTwoTwoFiveSevenmEightfNtshSixKwxTwo" id="sdev_RelatedPartyTransactionsZeroOneSevenNineSevenTwoTwoFiveSevenmEightfNtshSixKwxTwo" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="RelatedPartyTransactionsZeroOneSevenNineSevenTwoTwoFiveSevenqEightFourThreeVFourgWThreetkF" id="sdev_RelatedPartyTransactionsZeroOneSevenNineSevenTwoTwoFiveSevenqEightFourThreeVFourgWThreetkF" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="RelatedPartyTransactionsZeroOneSevenNineSevenTwoTwoFiveSevenSFourJDvfsClgdW" id="sdev_RelatedPartyTransactionsZeroOneSevenNineSevenTwoTwoFiveSevenSFourJDvfsClgdW" type="num:perShareItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="RelatedPartyTransactionsZeroOneSevenNineSevenTwoTwoFiveSevenRZMdXThreeWpThreeXWf" id="sdev_RelatedPartyTransactionsZeroOneSevenNineSevenTwoTwoFiveSevenRZMdXThreeWpThreeXWf" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="RelatedPartyTransactionsZeroOneSevenNineSevenTwoTwoFiveSevenZerodXmrllnFSevenSF" id="sdev_RelatedPartyTransactionsZeroOneSevenNineSevenTwoTwoFiveSevenZerodXmrllnFSevenSF" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="RelatedPartyTransactionsZeroOneSevenNineSevenTwoTwoFiveSevenVTZxqSxRgJTb" id="sdev_RelatedPartyTransactionsZeroOneSevenNineSevenTwoTwoFiveSevenVTZxqSxRgJTb" type="num:perShareItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="RelatedPartyTransactionsZeroOneSevenNineSevenTwoTwoFiveSevenMPrBZZSixyDCNZero" id="sdev_RelatedPartyTransactionsZeroOneSevenNineSevenTwoTwoFiveSevenMPrBZZSixyDCNZero" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="RelatedPartyTransactionsZeroOneSevenNineSevenTwoTwoFiveSevenqRFivebTwoWhZeroRTwokC" id="sdev_RelatedPartyTransactionsZeroOneSevenNineSevenTwoTwoFiveSevenqRFivebTwoWhZeroRTwokC" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="RelatedPartyTransactionsZeroOneSevenNineSevenTwoTwoFiveSevenNineKRTZlTHMnZeroD" id="sdev_RelatedPartyTransactionsZeroOneSevenNineSevenTwoTwoFiveSevenNineKRTZlTHMnZeroD" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="CommitmentsZeroOneSevenNineSevenTwoTwoFiveSevennThreeJpzbFiveTnJcy" id="sdev_CommitmentsZeroOneSevenNineSevenTwoTwoFiveSevennThreeJpzbFiveTnJcy" type="us-types:perUnitItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="CommitmentsZeroOneSevenNineSevenTwoTwoFiveSevenvpgJRNineKWCzVTwo" id="sdev_CommitmentsZeroOneSevenNineSevenTwoTwoFiveSevenvpgJRNineKWCzVTwo" type="num:percentItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="CommitmentsZeroOneSevenNineSevenTwoTwoFiveSevenwHSNPrvhbFivekq" id="sdev_CommitmentsZeroOneSevenNineSevenTwoTwoFiveSevenwHSNPrvhbFivekq" type="xbrli:decimalItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="CommitmentsZeroOneSevenNineSevenTwoTwoFiveSevenTwoTGRThreeSSixqFiveFiveQNine" id="sdev_CommitmentsZeroOneSevenNineSevenTwoTwoFiveSevenTwoTGRThreeSSixqFiveFiveQNine" type="us-types:perUnitItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="CommitmentsZeroOneSevenNineSevenTwoTwoFiveSevenTwoZfhpThreePccCzX" id="sdev_CommitmentsZeroOneSevenNineSevenTwoTwoFiveSevenTwoZfhpThreePccCzX" type="num:percentItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="CommitmentsZeroOneSevenNineSevenTwoTwoFiveSevenTRSevenpBbmhmZTw" id="sdev_CommitmentsZeroOneSevenNineSevenTwoTwoFiveSevenTRSevenpBbmhmZTw" type="us-types:perUnitItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="CommitmentsZeroOneSevenNineSevenTwoTwoFiveSevenhOnedHTTTBcGkL" id="sdev_CommitmentsZeroOneSevenNineSevenTwoTwoFiveSevenhOnedHTTTBcGkL" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="CommitmentsZeroOneSevenNineSevenTwoTwoFiveSeventSvZeroNNinenFZeroybJ" id="sdev_CommitmentsZeroOneSevenNineSevenTwoTwoFiveSeventSvZeroNNinenFZeroybJ" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="CommitmentsZeroOneSevenNineSevenTwoTwoFiveSevenCVHTPLWZskGx" id="sdev_CommitmentsZeroOneSevenNineSevenTwoTwoFiveSevenCVHTPLWZskGx" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="CommitmentsZeroOneSevenNineSevenTwoTwoFiveSevenSixsZyGpQbKEightZerot" id="sdev_CommitmentsZeroOneSevenNineSevenTwoTwoFiveSevenSixsZyGpQbKEightZerot" type="us-types:perUnitItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="CommitmentsZeroOneSevenNineSevenTwoTwoFiveSevenNlVyXXfvEightTwoZf" id="sdev_CommitmentsZeroOneSevenNineSevenTwoTwoFiveSevenNlVyXXfvEightTwoZf" type="xbrli:decimalItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="CommitmentsZeroOneSevenNineSevenTwoTwoFiveSevenBZLlmcSdFourvmt" id="sdev_CommitmentsZeroOneSevenNineSevenTwoTwoFiveSevenBZLlmcSdFourvmt" type="us-types:perUnitItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="CommitmentsZeroOneSevenNineSevenTwoTwoFiveSevenHVkHEightDTbhdWm" id="sdev_CommitmentsZeroOneSevenNineSevenTwoTwoFiveSevenHVkHEightDTbhdWm" type="xbrli:decimalItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="CommitmentsZeroOneSevenNineSevenTwoTwoFiveSevenCPsNPtOnenhThreeqSeven" id="sdev_CommitmentsZeroOneSevenNineSevenTwoTwoFiveSevenCPsNPtOnenhThreeqSeven" type="us-types:perUnitItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="CommitmentsZeroOneSevenNineSevenTwoTwoFiveSevenTXvdfFourBhmFiveCz" id="sdev_CommitmentsZeroOneSevenNineSevenTwoTwoFiveSevenTXvdfFourBhmFiveCz" type="us-types:perUnitItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ConvertibleDebenturesZeroOneSevenNineSevenTwoTwoFiveSevenwfgkOneTTlhGtH" id="sdev_ConvertibleDebenturesZeroOneSevenNineSevenTwoTwoFiveSevenwfgkOneTTlhGtH" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ConvertibleDebenturesZeroOneSevenNineSevenTwoTwoFiveSevenTNKRGyyFourVGFourq" id="sdev_ConvertibleDebenturesZeroOneSevenNineSevenTwoTwoFiveSevenTNKRGyyFourVGFourq" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ConvertibleDebenturesZeroOneSevenNineSevenTwoTwoFiveSevenTwonLtVEightNineHZQct" id="sdev_ConvertibleDebenturesZeroOneSevenNineSevenTwoTwoFiveSevenTwonLtVEightNineHZQct" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ConvertibleDebenturesZeroOneSevenNineSevenTwoTwoFiveSevenEightThreerpGQOneThreeWgQX" id="sdev_ConvertibleDebenturesZeroOneSevenNineSevenTwoTwoFiveSevenEightThreerpGQOneThreeWgQX" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ConvertibleDebenturesZeroOneSevenNineSevenTwoTwoFiveSevenTwosWThreeNkSfcpTwoz" id="sdev_ConvertibleDebenturesZeroOneSevenNineSevenTwoTwoFiveSevenTwosWThreeNkSfcpTwoz" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ConvertibleDebenturesZeroOneSevenNineSevenTwoTwoFiveSevenmMPgXghLNineOneth" id="sdev_ConvertibleDebenturesZeroOneSevenNineSevenTwoTwoFiveSevenmMPgXghLNineOneth" type="num:perShareItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ConvertibleDebenturesZeroOneSevenNineSevenTwoTwoFiveSevencBNvmJFiveJXBDp" id="sdev_ConvertibleDebenturesZeroOneSevenNineSevenTwoTwoFiveSevencBNvmJFiveJXBDp" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ConvertibleDebenturesZeroOneSevenNineSevenTwoTwoFiveSevenfwcNineFiveLSixsLlpR" id="sdev_ConvertibleDebenturesZeroOneSevenNineSevenTwoTwoFiveSevenfwcNineFiveLSixsLlpR" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ConvertibleDebenturesZeroOneSevenNineSevenTwoTwoFiveSevenytTwoVKNEightRNinelTm" id="sdev_ConvertibleDebenturesZeroOneSevenNineSevenTwoTwoFiveSevenytTwoVKNEightRNinelTm" type="xbrli:pureItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ConvertibleDebenturesZeroOneSevenNineSevenTwoTwoFiveSevensSixTwoXgTfKlnEightw" id="sdev_ConvertibleDebenturesZeroOneSevenNineSevenTwoTwoFiveSevensSixTwoXgTfKlnEightw" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ConvertibleDebenturesZeroOneSevenNineSevenTwoTwoFiveSevenQcxfXEightdfDtkk" id="sdev_ConvertibleDebenturesZeroOneSevenNineSevenTwoTwoFiveSevenQcxfXEightdfDtkk" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ConvertibleDebenturesZeroOneSevenNineSevenTwoTwoFiveSevenTssTSixyqTDmNineM" id="sdev_ConvertibleDebenturesZeroOneSevenNineSevenTwoTwoFiveSevenTssTSixyqTDmNineM" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="LoansFromNonRelatedPartiesZeroOneSevenNineSevenTwoTwoFiveSevenBvmpQFourlRvBTSeven" id="sdev_LoansFromNonRelatedPartiesZeroOneSevenNineSevenTwoTwoFiveSevenBvmpQFourlRvBTSeven" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="LoansFromNonRelatedPartiesZeroOneSevenNineSevenTwoTwoFiveSevenQSfyGEighttQBGThreey" id="sdev_LoansFromNonRelatedPartiesZeroOneSevenNineSevenTwoTwoFiveSevenQSfyGEighttQBGThreey" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="LoansFromNonRelatedPartiesZeroOneSevenNineSevenTwoTwoFiveSevenpSZGSZerowZeroSevenNvZero" id="sdev_LoansFromNonRelatedPartiesZeroOneSevenNineSevenTwoTwoFiveSevenpSZGSZerowZeroSevenNvZero" type="num:percentItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="LoansFromNonRelatedPartiesZeroOneSevenNineSevenTwoTwoFiveSevenzMSevenVTwoyGSixZerokcK" id="sdev_LoansFromNonRelatedPartiesZeroOneSevenNineSevenTwoTwoFiveSevenzMSevenVTwoyGSixZerokcK" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="LoansFromNonRelatedPartiesZeroOneSevenNineSevenTwoTwoFiveSevenvNineSDEightqTFiverQDZero" id="sdev_LoansFromNonRelatedPartiesZeroOneSevenNineSevenTwoTwoFiveSevenvNineSDEightqTFiverQDZero" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="LoansFromNonRelatedPartiesZeroOneSevenNineSevenTwoTwoFiveSevendyZThreepTwoRTWdTb" id="sdev_LoansFromNonRelatedPartiesZeroOneSevenNineSevenTwoTwoFiveSevendyZThreepTwoRTWdTb" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="LoansFromNonRelatedPartiesZeroOneSevenNineSevenTwoTwoFiveSevenySWxFTSevennHkTwoq" id="sdev_LoansFromNonRelatedPartiesZeroOneSevenNineSevenTwoTwoFiveSevenySWxFTSevennHkTwoq" type="num:perShareItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="LoansFromNonRelatedPartiesZeroOneSevenNineSevenTwoTwoFiveSevenfWTFiveJSevenDCcByM" id="sdev_LoansFromNonRelatedPartiesZeroOneSevenNineSevenTwoTwoFiveSevenfWTFiveJSevenDCcByM" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="LoansFromNonRelatedPartiesZeroOneSevenNineSevenTwoTwoFiveSevenEightHClCNZEightdvOneH" id="sdev_LoansFromNonRelatedPartiesZeroOneSevenNineSevenTwoTwoFiveSevenEightHClCNZEightdvOneH" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="LoansFromNonRelatedPartiesZeroOneSevenNineSevenTwoTwoFiveSevenmxwGzyRbzPWD" id="sdev_LoansFromNonRelatedPartiesZeroOneSevenNineSevenTwoTwoFiveSevenmxwGzyRbzPWD" type="num:percentItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="LoansFromNonRelatedPartiesZeroOneSevenNineSevenTwoTwoFiveSevenThreePZerotpNineNinevnFourkd" id="sdev_LoansFromNonRelatedPartiesZeroOneSevenNineSevenTwoTwoFiveSevenThreePZerotpNineNinevnFourkd" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="LoansFromNonRelatedPartiesZeroOneSevenNineSevenTwoTwoFiveSevenzcKHknBCKmNc" id="sdev_LoansFromNonRelatedPartiesZeroOneSevenNineSevenTwoTwoFiveSevenzcKHknBCKmNc" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="LoansFromNonRelatedPartiesZeroOneSevenNineSevenTwoTwoFiveSevenzlkWCTwoZeroSixGgVS" id="sdev_LoansFromNonRelatedPartiesZeroOneSevenNineSevenTwoTwoFiveSevenzlkWCTwoZeroSixGgVS" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="LoansFromNonRelatedPartiesZeroOneSevenNineSevenTwoTwoFiveSevendNNinehLQXfKFourzNine" id="sdev_LoansFromNonRelatedPartiesZeroOneSevenNineSevenTwoTwoFiveSevendNNinehLQXfKFourzNine" type="num:perShareItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="LoansFromNonRelatedPartiesZeroOneSevenNineSevenTwoTwoFiveSevenShGQNineFTzSPPT" id="sdev_LoansFromNonRelatedPartiesZeroOneSevenNineSevenTwoTwoFiveSevenShGQNineFTzSPPT" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="LoansFromNonRelatedPartiesZeroOneSevenNineSevenTwoTwoFiveSevenBqdFourTqHKzrTM" id="sdev_LoansFromNonRelatedPartiesZeroOneSevenNineSevenTwoTwoFiveSevenBqdFourTqHKzrTM" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="LoansFromNonRelatedPartiesZeroOneSevenNineSevenTwoTwoFiveSevenEightFxpBRZVxSixRt" id="sdev_LoansFromNonRelatedPartiesZeroOneSevenNineSevenTwoTwoFiveSevenEightFxpBRZVxSixRt" type="num:percentItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="LoansFromNonRelatedPartiesZeroOneSevenNineSevenTwoTwoFiveSevenPGbHNpSsWVzv" id="sdev_LoansFromNonRelatedPartiesZeroOneSevenNineSevenTwoTwoFiveSevenPGbHNpSsWVzv" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="LoansFromNonRelatedPartiesZeroOneSevenNineSevenTwoTwoFiveSevenLGrSgTslSixXrZ" id="sdev_LoansFromNonRelatedPartiesZeroOneSevenNineSevenTwoTwoFiveSevenLGrSgTslSixXrZ" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="LoansFromNonRelatedPartiesZeroOneSevenNineSevenTwoTwoFiveSevenNineFcNVfPZpSevensG" id="sdev_LoansFromNonRelatedPartiesZeroOneSevenNineSevenTwoTwoFiveSevenNineFcNVfPZpSevensG" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="LoansFromNonRelatedPartiesZeroOneSevenNineSevenTwoTwoFiveSevencPHVrZeroNinehLCEightQ" id="sdev_LoansFromNonRelatedPartiesZeroOneSevenNineSevenTwoTwoFiveSevencPHVrZeroNinehLCEightQ" type="num:perShareItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="LoanFromRelatedPartyZeroOneSevenNineSevenTwoTwoFiveSevenVXyhmTcNEightOneZeror" id="sdev_LoanFromRelatedPartyZeroOneSevenNineSevenTwoTwoFiveSevenVXyhmTcNEightOneZeror" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="LoanFromRelatedPartyZeroOneSevenNineSevenTwoTwoFiveSevenQNSevenEightTCfXqtcF" id="sdev_LoanFromRelatedPartyZeroOneSevenNineSevenTwoTwoFiveSevenQNSevenEightTCfXqtcF" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="LoanFromRelatedPartyZeroOneSevenNineSevenTwoTwoFiveSevenThreeMFourdXCEightJNineEightFivep" id="sdev_LoanFromRelatedPartyZeroOneSevenNineSevenTwoTwoFiveSevenThreeMFourdXCEightJNineEightFivep" type="num:percentItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="LoanFromRelatedPartyZeroOneSevenNineSevenTwoTwoFiveSevenWqGLTFwBwSevenpl" id="sdev_LoanFromRelatedPartyZeroOneSevenNineSevenTwoTwoFiveSevenWqGLTFwBwSevenpl" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="LoanFromRelatedPartyZeroOneSevenNineSevenTwoTwoFiveSevenwThreeCJwXpNDlTwoX" id="sdev_LoanFromRelatedPartyZeroOneSevenNineSevenTwoTwoFiveSevenwThreeCJwXpNDlTwoX" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="LoanFromRelatedPartyZeroOneSevenNineSevenTwoTwoFiveSevenHDcrwSixEightXkDSevenZ" id="sdev_LoanFromRelatedPartyZeroOneSevenNineSevenTwoTwoFiveSevenHDcrwSixEightXkDSevenZ" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="LoanFromRelatedPartyZeroOneSevenNineSevenTwoTwoFiveSevenxmNWPkdcNhTB" id="sdev_LoanFromRelatedPartyZeroOneSevenNineSevenTwoTwoFiveSevenxmNWPkdcNhTB" type="num:perShareItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="SubsequentEventsZeroOneSevenNineSevenTwoTwoFiveSevenRhJtFourRrOneSevenrNP" id="sdev_SubsequentEventsZeroOneSevenNineSevenTwoTwoFiveSevenRhJtFourRrOneSevenrNP" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="SubsequentEventsZeroOneSevenNineSevenTwoTwoFiveSevenPpLyzZeroBFourhdTk" id="sdev_SubsequentEventsZeroOneSevenNineSevenTwoTwoFiveSevenPpLyzZeroBFourhdTk" type="num:perShareItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="SubsequentEventsZeroOneSevenNineSevenTwoTwoFiveSevenThreePflNbwZeroEightNKN" id="sdev_SubsequentEventsZeroOneSevenNineSevenTwoTwoFiveSevenThreePflNbwZeroEightNKN" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="SubsequentEventsZeroOneSevenNineSevenTwoTwoFiveSevenvZThreeTwoqtVkZNvD" id="sdev_SubsequentEventsZeroOneSevenNineSevenTwoTwoFiveSevenvZThreeTwoqtVkZNvD" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="SubsequentEventsZeroOneSevenNineSevenTwoTwoFiveSevenGTwoHTTsFourLcpXZ" id="sdev_SubsequentEventsZeroOneSevenNineSevenTwoTwoFiveSevenGTwoHTTsFourLcpXZ" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="SubsequentEventsZeroOneSevenNineSevenTwoTwoFiveSevenTSixVrxOneTMTwoLrd" id="sdev_SubsequentEventsZeroOneSevenNineSevenTwoTwoFiveSevenTSixVrxOneTMTwoLrd" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="SubsequentEventsZeroOneSevenNineSevenTwoTwoFiveSevenhmnzzzRXrbFourg" id="sdev_SubsequentEventsZeroOneSevenNineSevenTwoTwoFiveSevenhmnzzzRXrbFourg" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="PropertyPlantAndEquipmentScheduleOfSignificantAcquisitionsAndDisposalsZeroOneSevenNineSevenTwoTwoFiveSevenFourynLOneywVZerovFD" id="sdev_PropertyPlantAndEquipmentScheduleOfSignificantAcquisitionsAndDisposalsZeroOneSevenNineSevenTwoTwoFiveSevenFourynLOneywVZerovFD" type="num:percentItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="PropertyPlantAndEquipmentScheduleOfSignificantAcquisitionsAndDisposalsZeroOneSevenNineSevenTwoTwoFiveSevenEighttfmPSFourLQJTp" id="sdev_PropertyPlantAndEquipmentScheduleOfSignificantAcquisitionsAndDisposalsZeroOneSevenNineSevenTwoTwoFiveSevenEighttfmPSFourLQJTp" type="num:percentItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="PropertyPlantAndEquipmentScheduleOfSignificantAcquisitionsAndDisposalsZeroOneSevenNineSevenTwoTwoFiveSevenVVSevenQpqrDCzzM" id="sdev_PropertyPlantAndEquipmentScheduleOfSignificantAcquisitionsAndDisposalsZeroOneSevenNineSevenTwoTwoFiveSevenVVSevenQpqrDCzzM" type="num:percentItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="PropertyPlantAndEquipmentScheduleOfSignificantAcquisitionsAndDisposalsZeroOneSevenNineSevenTwoTwoFiveSevenJFourcwpNinexWEightdNineSeven" id="sdev_PropertyPlantAndEquipmentScheduleOfSignificantAcquisitionsAndDisposalsZeroOneSevenNineSevenTwoTwoFiveSevenJFourcwpNinexWEightdNineSeven" type="xbrli:decimalItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfPropertyPlantAndEquipmentZeroOneSevenNineSevenTwoTwoFiveSevenqEighthPGRFBSevenThreeJT" id="sdev_ScheduleOfPropertyPlantAndEquipmentZeroOneSevenNineSevenTwoTwoFiveSevenqEighthPGRFBSevenThreeJT" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfPropertyPlantAndEquipmentZeroOneSevenNineSevenTwoTwoFiveSevensPvnsNzQtDbZero" id="sdev_ScheduleOfPropertyPlantAndEquipmentZeroOneSevenNineSevenTwoTwoFiveSevensPvnsNzQtDbZero" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfPropertyPlantAndEquipmentZeroOneSevenNineSevenTwoTwoFiveSevenBwThreeNyKkXbRlThree" id="sdev_ScheduleOfPropertyPlantAndEquipmentZeroOneSevenNineSevenTwoTwoFiveSevenBwThreeNyKkXbRlThree" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfPropertyPlantAndEquipmentZeroOneSevenNineSevenTwoTwoFiveSevenSevenFRcVZNinezMZeroVs" id="sdev_ScheduleOfPropertyPlantAndEquipmentZeroOneSevenNineSevenTwoTwoFiveSevenSevenFRcVZNinezMZeroVs" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfPropertyPlantAndEquipmentZeroOneSevenNineSevenTwoTwoFiveSevenvBzQRHRrMSevenZz" id="sdev_ScheduleOfPropertyPlantAndEquipmentZeroOneSevenNineSevenTwoTwoFiveSevenvBzQRHRrMSevenZz" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfPropertyPlantAndEquipmentZeroOneSevenNineSevenTwoTwoFiveSevenSLSixhCmCwvrMg" id="sdev_ScheduleOfPropertyPlantAndEquipmentZeroOneSevenNineSevenTwoTwoFiveSevenSLSixhCmCwvrMg" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfPropertyPlantAndEquipmentZeroOneSevenNineSevenTwoTwoFiveSevencFivefQPEightxxMOneZerol" id="sdev_ScheduleOfPropertyPlantAndEquipmentZeroOneSevenNineSevenTwoTwoFiveSevencFivefQPEightxxMOneZerol" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfPropertyPlantAndEquipmentZeroOneSevenNineSevenTwoTwoFiveSevensHQTCgzmnlMV" id="sdev_ScheduleOfPropertyPlantAndEquipmentZeroOneSevenNineSevenTwoTwoFiveSevensHQTCgzmnlMV" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfPropertyPlantAndEquipmentZeroOneSevenNineSevenTwoTwoFiveSevenSevenxsqnPNineCTwoTgX" id="sdev_ScheduleOfPropertyPlantAndEquipmentZeroOneSevenNineSevenTwoTwoFiveSevenSevenxsqnPNineCTwoTgX" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfPropertyPlantAndEquipmentZeroOneSevenNineSevenTwoTwoFiveSevenQGHzQgPHQSfT" id="sdev_ScheduleOfPropertyPlantAndEquipmentZeroOneSevenNineSevenTwoTwoFiveSevenQGHzQgPHQSfT" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfPropertyPlantAndEquipmentZeroOneSevenNineSevenTwoTwoFiveSevenTPJTwoMxwPHqnH" id="sdev_ScheduleOfPropertyPlantAndEquipmentZeroOneSevenNineSevenTwoTwoFiveSevenTPJTwoMxwPHqnH" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfPropertyPlantAndEquipmentZeroOneSevenNineSevenTwoTwoFiveSevenKhEightXEightpEightSevenvkfb" id="sdev_ScheduleOfPropertyPlantAndEquipmentZeroOneSevenNineSevenTwoTwoFiveSevenKhEightXEightpEightSevenvkfb" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfPropertyPlantAndEquipmentZeroOneSevenNineSevenTwoTwoFiveSevenTSevenJJlVFourhNEightBK" id="sdev_ScheduleOfPropertyPlantAndEquipmentZeroOneSevenNineSevenTwoTwoFiveSevenTSevenJJlVFourhNEightBK" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfPropertyPlantAndEquipmentZeroOneSevenNineSevenTwoTwoFiveSevenWBGWFivebZmqrZh" id="sdev_ScheduleOfPropertyPlantAndEquipmentZeroOneSevenNineSevenTwoTwoFiveSevenWBGWFivebZmqrZh" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfPropertyPlantAndEquipmentZeroOneSevenNineSevenTwoTwoFiveSevenwpbEightPltDMxkN" id="sdev_ScheduleOfPropertyPlantAndEquipmentZeroOneSevenNineSevenTwoTwoFiveSevenwpbEightPltDMxkN" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfPropertyPlantAndEquipmentZeroOneSevenNineSevenTwoTwoFiveSevenBTMnLDcRPrcv" id="sdev_ScheduleOfPropertyPlantAndEquipmentZeroOneSevenNineSevenTwoTwoFiveSevenBTMnLDcRPrcv" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfPropertyPlantAndEquipmentZeroOneSevenNineSevenTwoTwoFiveSeventNtfvTyWmRCEight" id="sdev_ScheduleOfPropertyPlantAndEquipmentZeroOneSevenNineSevenTwoTwoFiveSeventNtfvTyWmRCEight" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfPropertyPlantAndEquipmentZeroOneSevenNineSevenTwoTwoFiveSevenpmOneQrzEightzkGPK" id="sdev_ScheduleOfPropertyPlantAndEquipmentZeroOneSevenNineSevenTwoTwoFiveSevenpmOneQrzEightzkGPK" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfPropertyPlantAndEquipmentZeroOneSevenNineSevenTwoTwoFiveSevenFiveKTwoTwoSQnZeroTSixnTwo" id="sdev_ScheduleOfPropertyPlantAndEquipmentZeroOneSevenNineSevenTwoTwoFiveSevenFiveKTwoTwoSQnZeroTSixnTwo" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfPropertyPlantAndEquipmentZeroOneSevenNineSevenTwoTwoFiveSevencFQLnQThreeplgZR" id="sdev_ScheduleOfPropertyPlantAndEquipmentZeroOneSevenNineSevenTwoTwoFiveSevencFQLnQThreeplgZR" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfPropertyPlantAndEquipmentZeroOneSevenNineSevenTwoTwoFiveSevenMVPtwvpEightZeroThC" id="sdev_ScheduleOfPropertyPlantAndEquipmentZeroOneSevenNineSevenTwoTwoFiveSevenMVPtwvpEightZeroThC" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfPropertyPlantAndEquipmentZeroOneSevenNineSevenTwoTwoFiveSevenyVCPScZeroCRJSh" id="sdev_ScheduleOfPropertyPlantAndEquipmentZeroOneSevenNineSevenTwoTwoFiveSevenyVCPScZeroCRJSh" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfPropertyPlantAndEquipmentZeroOneSevenNineSevenTwoTwoFiveSevenFSWfMqdCDMZF" id="sdev_ScheduleOfPropertyPlantAndEquipmentZeroOneSevenNineSevenTwoTwoFiveSevenFSWfMqdCDMZF" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfPropertyPlantAndEquipmentZeroOneSevenNineSevenTwoTwoFiveSevenJPfGdQJZxJVp" id="sdev_ScheduleOfPropertyPlantAndEquipmentZeroOneSevenNineSevenTwoTwoFiveSevenJPfGdQJZxJVp" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfSharebasedCompensationAndAssumptionsAsOfJanuaryFourTwoZeroOneTwoZeroOneSevenNineSevenTwoTwoFiveSevenRWTwoHDCNineZEightGyNine" id="sdev_ScheduleOfSharebasedCompensationAndAssumptionsAsOfJanuaryFourTwoZeroOneTwoZeroOneSevenNineSevenTwoTwoFiveSevenRWTwoHDCNineZEightGyNine" type="num:percentItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfSharebasedCompensationAndAssumptionsAsOfJanuaryFourTwoZeroOneTwoZeroOneSevenNineSevenTwoTwoFiveSevenThreexTqSqQVzxHS" id="sdev_ScheduleOfSharebasedCompensationAndAssumptionsAsOfJanuaryFourTwoZeroOneTwoZeroOneSevenNineSevenTwoTwoFiveSevenThreexTqSqQVzxHS" type="num:percentItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfSharebasedCompensationAndAssumptionsAsOfJanuaryFourTwoZeroOneTwoZeroOneSevenNineSevenTwoTwoFiveSevenZmZZeroKWZFJHOneD" id="sdev_ScheduleOfSharebasedCompensationAndAssumptionsAsOfJanuaryFourTwoZeroOneTwoZeroOneSevenNineSevenTwoTwoFiveSevenZmZZeroKWZFJHOneD" type="num:percentItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfSharebasedCompensationAndAssumptionsAsOfJanuaryFourTwoZeroOneTwoZeroOneSevenNineSevenTwoTwoFiveSevenFZrKZZFiveBZRhs" id="sdev_ScheduleOfSharebasedCompensationAndAssumptionsAsOfJanuaryFourTwoZeroOneTwoZeroOneSevenNineSevenTwoTwoFiveSevenFZrKZZFiveBZRhs" type="num:percentItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfSharebasedCompensationAndAssumptionsAsOfJanuaryFourTwoZeroOneTwoZeroOneSevenNineSevenTwoTwoFiveSevenbwyFourvFXTgnKP" id="sdev_ScheduleOfSharebasedCompensationAndAssumptionsAsOfJanuaryFourTwoZeroOneTwoZeroOneSevenNineSevenTwoTwoFiveSevenbwyFourvFXTgnKP" type="xbrli:pureItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfSharebasedCompensationAndAssumptionsAsOfJanuaryFourTwoZeroOneTwoZeroOneSevenNineSevenTwoTwoFiveSevenMZeroFVLpFQPTWK" id="sdev_ScheduleOfSharebasedCompensationAndAssumptionsAsOfJanuaryFourTwoZeroOneTwoZeroOneSevenNineSevenTwoTwoFiveSevenMZeroFVLpFQPTWK" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfSharebasedCompensationAndAssumptionsAsOfOctoberThreeTwoZeroOneTwoZeroOneSevenNineSevenTwoTwoFiveSevenLFourEightkwpWNineKCOneb" id="sdev_ScheduleOfSharebasedCompensationAndAssumptionsAsOfOctoberThreeTwoZeroOneTwoZeroOneSevenNineSevenTwoTwoFiveSevenLFourEightkwpWNineKCOneb" type="num:percentItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfSharebasedCompensationAndAssumptionsAsOfOctoberThreeTwoZeroOneTwoZeroOneSevenNineSevenTwoTwoFiveSeventSixLTFourSOnecHNOnet" id="sdev_ScheduleOfSharebasedCompensationAndAssumptionsAsOfOctoberThreeTwoZeroOneTwoZeroOneSevenNineSevenTwoTwoFiveSeventSixLTFourSOnecHNOnet" type="num:percentItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfSharebasedCompensationAndAssumptionsAsOfOctoberThreeTwoZeroOneTwoZeroOneSevenNineSevenTwoTwoFiveSevenhThreeNFQBOneJzBTb" id="sdev_ScheduleOfSharebasedCompensationAndAssumptionsAsOfOctoberThreeTwoZeroOneTwoZeroOneSevenNineSevenTwoTwoFiveSevenhThreeNFQBOneJzBTb" type="num:percentItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfSharebasedCompensationAndAssumptionsAsOfOctoberThreeTwoZeroOneTwoZeroOneSevenNineSevenTwoTwoFiveSevenBVycLpWHFourhMEight" id="sdev_ScheduleOfSharebasedCompensationAndAssumptionsAsOfOctoberThreeTwoZeroOneTwoZeroOneSevenNineSevenTwoTwoFiveSevenBVycLpWHFourhMEight" type="num:percentItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfSharebasedCompensationAndAssumptionsAsOfOctoberThreeTwoZeroOneTwoZeroOneSevenNineSevenTwoTwoFiveSevenSixDnfMqzZeroytFt" id="sdev_ScheduleOfSharebasedCompensationAndAssumptionsAsOfOctoberThreeTwoZeroOneTwoZeroOneSevenNineSevenTwoTwoFiveSevenSixDnfMqzZeroytFt" type="xbrli:pureItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfSharebasedCompensationAndAssumptionsAsOfOctoberThreeTwoZeroOneTwoZeroOneSevenNineSevenTwoTwoFiveSevenJSevencXOneNNineThreeThreehTn" id="sdev_ScheduleOfSharebasedCompensationAndAssumptionsAsOfOctoberThreeTwoZeroOneTwoZeroOneSevenNineSevenTwoTwoFiveSevenJSevencXOneNNineThreeThreehTn" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfSharebasedCompensationAndAssumptionsAsOfOctoberTwoSixTwoZeroOneTwoZeroOneSevenNineSevenTwoTwoFiveSevenlZerotTwoGylRGPThreef" id="sdev_ScheduleOfSharebasedCompensationAndAssumptionsAsOfOctoberTwoSixTwoZeroOneTwoZeroOneSevenNineSevenTwoTwoFiveSevenlZerotTwoGylRGPThreef" type="num:percentItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfSharebasedCompensationAndAssumptionsAsOfOctoberTwoSixTwoZeroOneTwoZeroOneSevenNineSevenTwoTwoFiveSevenRDqMTwoTwoqdQvgm" id="sdev_ScheduleOfSharebasedCompensationAndAssumptionsAsOfOctoberTwoSixTwoZeroOneTwoZeroOneSevenNineSevenTwoTwoFiveSevenRDqMTwoTwoqdQvgm" type="num:percentItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfSharebasedCompensationAndAssumptionsAsOfOctoberTwoSixTwoZeroOneTwoZeroOneSevenNineSevenTwoTwoFiveSevenREightCFourPbLqWkRk" id="sdev_ScheduleOfSharebasedCompensationAndAssumptionsAsOfOctoberTwoSixTwoZeroOneTwoZeroOneSevenNineSevenTwoTwoFiveSevenREightCFourPbLqWkRk" type="num:percentItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfSharebasedCompensationAndAssumptionsAsOfOctoberTwoSixTwoZeroOneTwoZeroOneSevenNineSevenTwoTwoFiveSevenWRCPhgZeroNTwoZerolFour" id="sdev_ScheduleOfSharebasedCompensationAndAssumptionsAsOfOctoberTwoSixTwoZeroOneTwoZeroOneSevenNineSevenTwoTwoFiveSevenWRCPhgZeroNTwoZerolFour" type="num:percentItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfSharebasedCompensationAndAssumptionsAsOfOctoberTwoSixTwoZeroOneTwoZeroOneSevenNineSevenTwoTwoFiveSevenWpbbTTwocMWhqZero" id="sdev_ScheduleOfSharebasedCompensationAndAssumptionsAsOfOctoberTwoSixTwoZeroOneTwoZeroOneSevenNineSevenTwoTwoFiveSevenWpbbTTwocMWhqZero" type="xbrli:pureItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfSharebasedCompensationAndAssumptionsAsOfOctoberTwoSixTwoZeroOneTwoZeroOneSevenNineSevenTwoTwoFiveSevenJTJgsEightKccSEightC" id="sdev_ScheduleOfSharebasedCompensationAndAssumptionsAsOfOctoberTwoSixTwoZeroOneTwoZeroOneSevenNineSevenTwoTwoFiveSevenJTJgsEightKccSEightC" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsIssuedOnJanuaryFourTwoZeroOneTwoZeroOneSevenNineSevenTwoTwoFiveSevensmxSixFRSixSFourThreeTwoQ" id="sdev_ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsIssuedOnJanuaryFourTwoZeroOneTwoZeroOneSevenNineSevenTwoTwoFiveSevensmxSixFRSixSFourThreeTwoQ" type="num:percentItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsIssuedOnJanuaryFourTwoZeroOneTwoZeroOneSevenNineSevenTwoTwoFiveSevenFourckTwodGZerozDXMp" id="sdev_ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsIssuedOnJanuaryFourTwoZeroOneTwoZeroOneSevenNineSevenTwoTwoFiveSevenFourckTwodGZerozDXMp" type="num:percentItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsIssuedOnJanuaryFourTwoZeroOneTwoZeroOneSevenNineSevenTwoTwoFiveSevenSevenKlWFourrFourhOnevlN" id="sdev_ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsIssuedOnJanuaryFourTwoZeroOneTwoZeroOneSevenNineSevenTwoTwoFiveSevenSevenKlWFourrFourhOnevlN" type="num:percentItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsIssuedOnJanuaryFourTwoZeroOneTwoZeroOneSevenNineSevenTwoTwoFiveSevenSixSXKFvSRdXmX" id="sdev_ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsIssuedOnJanuaryFourTwoZeroOneTwoZeroOneSevenNineSevenTwoTwoFiveSevenSixSXKFvSRdXmX" type="num:percentItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsIssuedOnJanuaryFourTwoZeroOneTwoZeroOneSevenNineSevenTwoTwoFiveSevengwhvTSnWNineGgG" id="sdev_ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsIssuedOnJanuaryFourTwoZeroOneTwoZeroOneSevenNineSevenTwoTwoFiveSevengwhvTSnWNineGgG" type="xbrli:pureItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsIssuedOnJanuaryFourTwoZeroOneTwoZeroOneSevenNineSevenTwoTwoFiveSevenPNineQtNinewyQRDSevenv" id="sdev_ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsIssuedOnJanuaryFourTwoZeroOneTwoZeroOneSevenNineSevenTwoTwoFiveSevenPNineQtNinewyQRDSevenv" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsIssuedOnAugustZeroNineTwoZeroOneTwoZeroOneSevenNineSevenTwoTwoFiveSevenJVMzPWgBXJQThree" id="sdev_ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsIssuedOnAugustZeroNineTwoZeroOneTwoZeroOneSevenNineSevenTwoTwoFiveSevenJVMzPWgBXJQThree" type="num:percentItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsIssuedOnAugustZeroNineTwoZeroOneTwoZeroOneSevenNineSevenTwoTwoFiveSevenSixVSixfFplBCqTF" id="sdev_ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsIssuedOnAugustZeroNineTwoZeroOneTwoZeroOneSevenNineSevenTwoTwoFiveSevenSixVSixfFplBCqTF" type="num:percentItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsIssuedOnAugustZeroNineTwoZeroOneTwoZeroOneSevenNineSevenTwoTwoFiveSevenrTMNineQCqOneqTsB" id="sdev_ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsIssuedOnAugustZeroNineTwoZeroOneTwoZeroOneSevenNineSevenTwoTwoFiveSevenrTMNineQCqOneqTsB" type="num:percentItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsIssuedOnAugustZeroNineTwoZeroOneTwoZeroOneSevenNineSevenTwoTwoFiveSevenhyEighttgQSixTwobtTThree" id="sdev_ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsIssuedOnAugustZeroNineTwoZeroOneTwoZeroOneSevenNineSevenTwoTwoFiveSevenhyEighttgQSixTwobtTThree" type="num:percentItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsIssuedOnAugustZeroNineTwoZeroOneTwoZeroOneSevenNineSevenTwoTwoFiveSevenXZXEightNineGHSevenTwonGx" id="sdev_ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsIssuedOnAugustZeroNineTwoZeroOneTwoZeroOneSevenNineSevenTwoTwoFiveSevenXZXEightNineGHSevenTwonGx" type="xbrli:pureItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsIssuedOnAugustZeroNineTwoZeroOneTwoZeroOneSevenNineSevenTwoTwoFiveSevenyLSevennVSixgShHwTwo" id="sdev_ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsIssuedOnAugustZeroNineTwoZeroOneTwoZeroOneSevenNineSevenTwoTwoFiveSevenyLSevennVSixgShHwTwo" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsIssuedOnOctoberThreeTwoZeroOneTwoZeroOneSevenNineSevenTwoTwoFiveSevenrVNQTWbwJcTh" id="sdev_ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsIssuedOnOctoberThreeTwoZeroOneTwoZeroOneSevenNineSevenTwoTwoFiveSevenrVNQTWbwJcTh" type="num:percentItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsIssuedOnOctoberThreeTwoZeroOneTwoZeroOneSevenNineSevenTwoTwoFiveSevenkFivePNineWmWLKpvW" id="sdev_ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsIssuedOnOctoberThreeTwoZeroOneTwoZeroOneSevenNineSevenTwoTwoFiveSevenkFivePNineWmWLKpvW" type="num:percentItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsIssuedOnOctoberThreeTwoZeroOneTwoZeroOneSevenNineSevenTwoTwoFiveSevenEightNZeroyZeroVFiveTwowcEightX" id="sdev_ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsIssuedOnOctoberThreeTwoZeroOneTwoZeroOneSevenNineSevenTwoTwoFiveSevenEightNZeroyZeroVFiveTwowcEightX" type="num:percentItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsIssuedOnOctoberThreeTwoZeroOneTwoZeroOneSevenNineSevenTwoTwoFiveSevenrHHTbkwTwoMXTn" id="sdev_ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsIssuedOnOctoberThreeTwoZeroOneTwoZeroOneSevenNineSevenTwoTwoFiveSevenrHHTbkwTwoMXTn" type="num:percentItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsIssuedOnOctoberThreeTwoZeroOneTwoZeroOneSevenNineSevenTwoTwoFiveSevengNinedXSevenwTccBXC" id="sdev_ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsIssuedOnOctoberThreeTwoZeroOneTwoZeroOneSevenNineSevenTwoTwoFiveSevengNinedXSevenwTccBXC" type="xbrli:pureItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsIssuedOnOctoberThreeTwoZeroOneTwoZeroOneSevenNineSevenTwoTwoFiveSevenPryTwottcfqydD" id="sdev_ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsIssuedOnOctoberThreeTwoZeroOneTwoZeroOneSevenNineSevenTwoTwoFiveSevenPryTwottcfqydD" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsIssuedOnJanuaryThreeZeroTwoZeroOneThreeZeroOneSevenNineSevenTwoTwoFiveSevenJyWBrQRfnSixCW" id="sdev_ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsIssuedOnJanuaryThreeZeroTwoZeroOneThreeZeroOneSevenNineSevenTwoTwoFiveSevenJyWBrQRfnSixCW" type="num:percentItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsIssuedOnJanuaryThreeZeroTwoZeroOneThreeZeroOneSevenNineSevenTwoTwoFiveSevenLtWSixThreelThreeXfTDN" id="sdev_ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsIssuedOnJanuaryThreeZeroTwoZeroOneThreeZeroOneSevenNineSevenTwoTwoFiveSevenLtWSixThreelThreeXfTDN" type="num:percentItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsIssuedOnJanuaryThreeZeroTwoZeroOneThreeZeroOneSevenNineSevenTwoTwoFiveSevenDxpdBvwKJFvZ" id="sdev_ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsIssuedOnJanuaryThreeZeroTwoZeroOneThreeZeroOneSevenNineSevenTwoTwoFiveSevenDxpdBvwKJFvZ" type="num:percentItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsIssuedOnJanuaryThreeZeroTwoZeroOneThreeZeroOneSevenNineSevenTwoTwoFiveSevenTSZerosSixDbXfGLEight" id="sdev_ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsIssuedOnJanuaryThreeZeroTwoZeroOneThreeZeroOneSevenNineSevenTwoTwoFiveSevenTSZerosSixDbXfGLEight" type="num:percentItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsIssuedOnJanuaryThreeZeroTwoZeroOneThreeZeroOneSevenNineSevenTwoTwoFiveSevenrFpGqXxRplGl" id="sdev_ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsIssuedOnJanuaryThreeZeroTwoZeroOneThreeZeroOneSevenNineSevenTwoTwoFiveSevenrFpGqXxRplGl" type="xbrli:pureItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsIssuedOnJanuaryThreeZeroTwoZeroOneThreeZeroOneSevenNineSevenTwoTwoFiveSevenFTNCFivengNineHFiveJX" id="sdev_ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsIssuedOnJanuaryThreeZeroTwoZeroOneThreeZeroOneSevenNineSevenTwoTwoFiveSevenFTNCFivengNineHFiveJX" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsIssuedOnMarchOneFourTwoZeroOneThreeZeroOneSevenNineSevenTwoTwoFiveSevenwXHvMCyChdxz" id="sdev_ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsIssuedOnMarchOneFourTwoZeroOneThreeZeroOneSevenNineSevenTwoTwoFiveSevenwXHvMCyChdxz" type="num:percentItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsIssuedOnMarchOneFourTwoZeroOneThreeZeroOneSevenNineSevenTwoTwoFiveSevenOnebFourxQSixbbbbvR" id="sdev_ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsIssuedOnMarchOneFourTwoZeroOneThreeZeroOneSevenNineSevenTwoTwoFiveSevenOnebFourxQSixbbbbvR" type="num:percentItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsIssuedOnMarchOneFourTwoZeroOneThreeZeroOneSevenNineSevenTwoTwoFiveSevenhTFourpwNinezGKggN" id="sdev_ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsIssuedOnMarchOneFourTwoZeroOneThreeZeroOneSevenNineSevenTwoTwoFiveSevenhTFourpwNinezGKggN" type="num:percentItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsIssuedOnMarchOneFourTwoZeroOneThreeZeroOneSevenNineSevenTwoTwoFiveSevengpbwtCQkCSEightg" id="sdev_ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsIssuedOnMarchOneFourTwoZeroOneThreeZeroOneSevenNineSevenTwoTwoFiveSevengpbwtCQkCSEightg" type="num:percentItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsIssuedOnMarchOneFourTwoZeroOneThreeZeroOneSevenNineSevenTwoTwoFiveSevenDTSNEightNtSgvcNine" id="sdev_ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsIssuedOnMarchOneFourTwoZeroOneThreeZeroOneSevenNineSevenTwoTwoFiveSevenDTSNEightNtSgvcNine" type="xbrli:pureItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsIssuedOnMarchOneFourTwoZeroOneThreeZeroOneSevenNineSevenTwoTwoFiveSevenFivekThreeQsQBSFnXf" id="sdev_ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsIssuedOnMarchOneFourTwoZeroOneThreeZeroOneSevenNineSevenTwoTwoFiveSevenFivekThreeQsQBSFnXf" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsIssuedOnAprilOneTwoTwoZeroOneThreeZeroOneSevenNineSevenTwoTwoFiveSevenBlXSixJrWDqTwopc" id="sdev_ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsIssuedOnAprilOneTwoTwoZeroOneThreeZeroOneSevenNineSevenTwoTwoFiveSevenBlXSixJrWDqTwopc" type="num:percentItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsIssuedOnAprilOneTwoTwoZeroOneThreeZeroOneSevenNineSevenTwoTwoFiveSevenPtKJJzTyyRFourP" id="sdev_ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsIssuedOnAprilOneTwoTwoZeroOneThreeZeroOneSevenNineSevenTwoTwoFiveSevenPtKJJzTyyRFourP" type="num:percentItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsIssuedOnAprilOneTwoTwoZeroOneThreeZeroOneSevenNineSevenTwoTwoFiveSeventcwZmMmVTFourHh" id="sdev_ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsIssuedOnAprilOneTwoTwoZeroOneThreeZeroOneSevenNineSevenTwoTwoFiveSeventcwZmMmVTFourHh" type="num:percentItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsIssuedOnAprilOneTwoTwoZeroOneThreeZeroOneSevenNineSevenTwoTwoFiveSevengrCFEightRTwSixqVR" id="sdev_ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsIssuedOnAprilOneTwoTwoZeroOneThreeZeroOneSevenNineSevenTwoTwoFiveSevengrCFEightRTwSixqVR" type="num:percentItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsIssuedOnAprilOneTwoTwoZeroOneThreeZeroOneSevenNineSevenTwoTwoFiveSevenXTvKKHKdvHfThree" id="sdev_ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsIssuedOnAprilOneTwoTwoZeroOneThreeZeroOneSevenNineSevenTwoTwoFiveSevenXTvKKHKdvHfThree" type="xbrli:pureItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsIssuedOnAprilOneTwoTwoZeroOneThreeZeroOneSevenNineSevenTwoTwoFiveSevenPqytvRFxFFTd" id="sdev_ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsIssuedOnAprilOneTwoTwoZeroOneThreeZeroOneSevenNineSevenTwoTwoFiveSevenPqytvRFxFFTd" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsIssuedOnMayOneFourTwoZeroOneThreeZeroOneSevenNineSevenTwoTwoFiveSevenRBQFGTwoLDVZnB" id="sdev_ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsIssuedOnMayOneFourTwoZeroOneThreeZeroOneSevenNineSevenTwoTwoFiveSevenRBQFGTwoLDVZnB" type="num:percentItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsIssuedOnMayOneFourTwoZeroOneThreeZeroOneSevenNineSevenTwoTwoFiveSevenNTmSixThreessSixFmFourN" id="sdev_ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsIssuedOnMayOneFourTwoZeroOneThreeZeroOneSevenNineSevenTwoTwoFiveSevenNTmSixThreessSixFmFourN" type="num:percentItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsIssuedOnMayOneFourTwoZeroOneThreeZeroOneSevenNineSevenTwoTwoFiveSevenSNineFiveFNinesTQrqSixSix" id="sdev_ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsIssuedOnMayOneFourTwoZeroOneThreeZeroOneSevenNineSevenTwoTwoFiveSevenSNineFiveFNinesTQrqSixSix" type="num:percentItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsIssuedOnMayOneFourTwoZeroOneThreeZeroOneSevenNineSevenTwoTwoFiveSevenOneLSixJmThreeZtGdFiveM" id="sdev_ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsIssuedOnMayOneFourTwoZeroOneThreeZeroOneSevenNineSevenTwoTwoFiveSevenOneLSixJmThreeZtGdFiveM" type="num:percentItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsIssuedOnMayOneFourTwoZeroOneThreeZeroOneSevenNineSevenTwoTwoFiveSevenFZZeroOneGRNinerOneqVS" id="sdev_ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsIssuedOnMayOneFourTwoZeroOneThreeZeroOneSevenNineSevenTwoTwoFiveSevenFZZeroOneGRNinerOneqVS" type="xbrli:pureItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <xsd:element name="ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsIssuedOnMayOneFourTwoZeroOneThreeZeroOneSevenNineSevenTwoTwoFiveSevenGsDSixFvzZeroFFourSevenQ" id="sdev_ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsIssuedOnMayOneFourTwoZeroOneThreeZeroOneSevenNineSevenTwoTwoFiveSevenGsDSixFvzZeroFFourSevenQ" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
</xsd:schema>
