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<import namespace="http://xbrl.sec.gov/currency/2014-01-31" schemaLocation="http://xbrl.sec.gov/currency/2014/currency-2014-01-31.xsd"/>
<import namespace="http://xbrl.sec.gov/exch/2014-01-31" schemaLocation="http://xbrl.sec.gov/exch/2014/exch-2014-01-31.xsd"/>
<import namespace="http://xbrl.sec.gov/naics/2011-01-31" schemaLocation="http://xbrl.sec.gov/naics/2011/naics-2011-01-31.xsd"/>
<import namespace="http://xbrl.sec.gov/sic/2011-01-31" schemaLocation="http://xbrl.sec.gov/sic/2011/sic-2011-01-31.xsd"/>
<import namespace="http://xbrl.sec.gov/stpr/2011-01-31" schemaLocation="http://xbrl.sec.gov/stpr/2011/stpr-2011-01-31.xsd"/>
<import namespace="http://www.xbrl.org/2009/role/negated" schemaLocation="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd"/>
<import namespace="http://www.xbrl.org/2009/role/net" schemaLocation="http://www.xbrl.org/lrr/role/net-2009-12-16.xsd"/>
<import namespace="http://www.xbrl.org/2009/arcrole/fact-explanatoryFact" schemaLocation="http://www.xbrl.org/lrr/arcrole/factExplanatory-2009-12-16.xsd"/>
<import namespace="http://xbrl.sec.gov/dei/2014-01-31" schemaLocation="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd"/>
<import namespace="http://www.xbrl.org/dtr/type/numeric" schemaLocation="http://www.xbrl.org/dtr/type/numeric-2009-12-16.xsd"/>
<import namespace="http://www.xbrl.org/dtr/type/non-numeric" schemaLocation="http://www.xbrl.org/dtr/type/nonNumeric-2009-12-16.xsd"/>
<import namespace="http://fasb.org/us-types/2014-01-31" schemaLocation="http://xbrl.fasb.org/us-gaap/2014/elts/us-types-2014-01-31.xsd"/>
<element name="DocumentAndEntityInformationAbstract" id="caci_DocumentAndEntityInformationAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="OtherComprehensiveIncomeReclassificationOfDefinedBenefitPlansChangesInActuarialAssumptionsAndNetPriorServiceCostRecognizedInNetPeriodicBenefitCostNetOfTax" id="caci_OtherComprehensiveIncomeReclassificationOfDefinedBenefitPlansChangesInActuarialAssumptionsAndNetPriorServiceCostRecognizedInNetPeriodicBenefitCostNetOfTax" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
<element name="NonCashInterestExpense" id="caci_NonCashInterestExpense" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
<element name="PaymentOfTaxesForEquityTransactions" id="caci_PaymentOfTaxesForEquityTransactions" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
<element name="LandlordFinancedLeaseholdImprovements" id="caci_LandlordFinancedLeaseholdImprovements" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
<element name="PostRetirementBenefitCosts" id="caci_PostRetirementBenefitCosts" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
<element name="GoodwillAbstract" id="caci_GoodwillAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="OtherAccruedExpensesAndCurrentLiabilitiesAbstract" id="caci_OtherAccruedExpensesAndCurrentLiabilitiesAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="ScheduleOfCapitalizedExternalSoftwareDevelopmentCostsTableTextBlock" id="caci_ScheduleOfCapitalizedExternalSoftwareDevelopmentCostsTableTextBlock" type="nonnum:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="ScheduleOfAccruedCompensationAndBenefitTableTextBlock" id="caci_ScheduleOfAccruedCompensationAndBenefitTableTextBlock" type="nonnum:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="PercentageOfRevenueSubjectToSubsequentGovernmentAuditsOfDirectAndIndirectCosts" id="caci_PercentageOfRevenueSubjectToSubsequentGovernmentAuditsOfDirectAndIndirectCosts" type="num:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="Six3SystemsHoldingsIIIncMember" id="caci_Six3SystemsHoldingsIIIncMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAccruedExpensesAndOtherCurrentLiabilities" id="caci_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAccruedExpensesAndOtherCurrentLiabilities" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
<element name="BankCreditFacilityTermLoanMember" id="caci_BankCreditFacilityTermLoanMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="LineOfCreditFacilityIncreaseInBorrowingCapacity" id="caci_LineOfCreditFacilityIncreaseInBorrowingCapacity" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
<element name="CustomerContractsAndCustomerRelationshipsMember" id="caci_CustomerContractsAndCustomerRelationshipsMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="AgreementAxis" id="caci_AgreementAxis" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:dimensionItem"/>
<element name="AgreementDomain" id="caci_AgreementDomain" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="RetentionAgreementsWithAcquiredEntityExecutivesMember" id="caci_RetentionAgreementsWithAcquiredEntityExecutivesMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="BusinessAcquisitionCostOfAcquiredEntityInitialPurchasePrice" id="caci_BusinessAcquisitionCostOfAcquiredEntityInitialPurchasePrice" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
<element name="BusinessAcquisitionEstimatedCashAndWorkingCapitalAdjustment" id="caci_BusinessAcquisitionEstimatedCashAndWorkingCapitalAdjustment" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
<element name="EscrowDepositDisbursementsRelatedToAcquisition" id="caci_EscrowDepositDisbursementsRelatedToAcquisition" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
<element name="EscrowDepositRelatedToIndemnifiedObligations" id="caci_EscrowDepositRelatedToIndemnifiedObligations" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
<element name="EscrowAmountDistributed" id="caci_EscrowAmountDistributed" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
<element name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedWorkingCapitalAdjustmentsNet" id="caci_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedWorkingCapitalAdjustmentsNet" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
<element name="BusinessAcquisitionGoodwillAndIntangiblesExpectedTaxDeductibleAmount" id="caci_BusinessAcquisitionGoodwillAndIntangiblesExpectedTaxDeductibleAmount" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
<element name="RetentionBonusesExpenses" id="caci_RetentionBonusesExpenses" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
<element name="InternationalOperationsMember" id="caci_InternationalOperationsMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="TomorrowCommunicationLtdMember" id="caci_TomorrowCommunicationLtdMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="BilledReceivables" id="caci_BilledReceivables" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
<element name="BillableReceivablesAtEndOfPeriod" id="caci_BillableReceivablesAtEndOfPeriod" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
<element name="UnbilledReceivablesRetainagesAndFeeWithholdingsNoncurrent" id="caci_UnbilledReceivablesRetainagesAndFeeWithholdingsNoncurrent" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
<element name="CustomerContractsAndRelatedCustomerRelationshipsMember" id="caci_CustomerContractsAndRelatedCustomerRelationshipsMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="CovenantsNotToCompeteMember" id="caci_CovenantsNotToCompeteMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="AccumulatedAmortizationAbstract" id="caci_AccumulatedAmortizationAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>

<element name="DeferredAcquisitionConsideration" id="caci_DeferredAcquisitionConsideration" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
<element name="OtherAccruedExpenses" id="caci_OtherAccruedExpenses" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
<element name="BankCreditFacilityMember" id="caci_BankCreditFacilityMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="SameDaySwingLineLoanMember" id="caci_SameDaySwingLineLoanMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="LongTermDebtPrincipalPaymentTermAxis" id="caci_LongTermDebtPrincipalPaymentTermAxis" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:dimensionItem"/>
<element name="LongTermDebtPrincipalPaymentTermDomain" id="caci_LongTermDebtPrincipalPaymentTermDomain" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="PrincipalPaymentThrough31December2016Member" id="caci_PrincipalPaymentThrough31December2016Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="PrincipalPaymentThereafter31December2016Member" id="caci_PrincipalPaymentThereafter31December2016Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="IndirectCostsAndSellingExpensesMember" id="caci_IndirectCostsAndSellingExpensesMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="DebtIssuanceCostCapitalized" id="caci_DebtIssuanceCostCapitalized" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
<element name="NonCashInterestExpenseMember" id="caci_NonCashInterestExpenseMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>




<element name="DebtInstrumentConvertibleAggregateConversionValue" id="caci_DebtInstrumentConvertibleAggregateConversionValue" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
<element name="DebtInstrumentConvertibleNumberOfSharesIssuedForSettlement" id="caci_DebtInstrumentConvertibleNumberOfSharesIssuedForSettlement" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>


<element name="IncomeTaxBenefitAssociatedWithDiscountOnIssueOfNotes" id="caci_IncomeTaxBenefitAssociatedWithDiscountOnIssueOfNotes" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
<element name="ProceedsFromSaleOfWarrant" id="caci_ProceedsFromSaleOfWarrant" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
<element name="OperatingLeaseExpirationTerm" id="caci_OperatingLeaseExpirationTerm" type="xbrli:durationItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="NonCancelableSubleaseRentalIncomeReceivablePeriod" id="caci_NonCancelableSubleaseRentalIncomeReceivablePeriod" type="xbrli:durationItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="ReserveForUnrecognizedTaxBenefits" id="caci_ReserveForUnrecognizedTaxBenefits" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
<element name="DomesticOperationsMember" id="caci_DomesticOperationsMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="DepartmentOfDefenseMember" id="caci_DepartmentOfDefenseMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="FederalCivilianAgenciesMember" id="caci_FederalCivilianAgenciesMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="CommercialAndOtherMember" id="caci_CommercialAndOtherMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="StateAndLocalGovernmentsMember" id="caci_StateAndLocalGovernmentsMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="AgenciesAndUSGovernmentMember" id="caci_AgenciesAndUSGovernmentMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="AcFirstLlcMember" id="caci_AcFirstLlcMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="EventureTechnologiesLlcMember" id="caci_EventureTechnologiesLlcMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="OwnershipPercentageOfJointVenturePartner" id="caci_OwnershipPercentageOfJointVenturePartner" type="num:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="NumberOfCompanyContractsSubpoenaed" id="caci_NumberOfCompanyContractsSubpoenaed" type="xbrli:positiveIntegerItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="ValueAddedTaxesExaminationEstimateOfPossibleLoss" id="caci_ValueAddedTaxesExaminationEstimateOfPossibleLoss" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
<element name="SalesAndUseTaxExaminationEstimateOfPossibleLoss" id="caci_SalesAndUseTaxExaminationEstimateOfPossibleLoss" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
<element name="IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterest" id="caci_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterest" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
<element name="DeferredTaxLiabilitiesUnbilledRevenue" id="caci_DeferredTaxLiabilitiesUnbilledRevenue" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>





<element name="ReclassificationNonCurrentDeferredTaxLiabilitiesNotMaterial" id="caci_ReclassificationNonCurrentDeferredTaxLiabilitiesNotMaterial" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
<element name="RabbiTrustMember" id="caci_RabbiTrustMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="FourZeroOneKPlanMember" id="caci_FourZeroOneKPlanMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="FourZeroOneKSix3RetirementSavingsPlanMember" id="caci_FourZeroOneKSix3RetirementSavingsPlanMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="DefinedContributionPlanEmployeeMatchingContributionPercentageOfCashCompensation" id="caci_DefinedContributionPlanEmployeeMatchingContributionPercentageOfCashCompensation" type="num:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="DefinedBenefitPlanEmployeeContributionPercentage" id="caci_DefinedBenefitPlanEmployeeContributionPercentage" type="num:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="DefinedBenefitPlanEmployeeContributionPercentageOfBonusAndCommission" id="caci_DefinedBenefitPlanEmployeeContributionPercentageOfBonusAndCommission" type="num:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="DefinedBenefitPlanEmployeeContributionPercentageThatExceedLimitSetForthInDefinedContributionPlan" id="caci_DefinedBenefitPlanEmployeeContributionPercentageThatExceedLimitSetForthInDefinedContributionPlan" type="num:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="EmployersContributionsVestingPeriod" id="caci_EmployersContributionsVestingPeriod" type="xbrli:durationItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="CompensationLimitOnContributionsByEmployer" id="caci_CompensationLimitOnContributionsByEmployer" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
<element name="DefinedBenefitPlanParticipantCompensationDeferral" id="caci_DefinedBenefitPlanParticipantCompensationDeferral" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
<element name="StockSettledStockAppreciationRightsAndStockOptionsMember" id="caci_StockSettledStockAppreciationRightsAndStockOptionsMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>





<element name="ExercisePrice34.10To65.04Member" id="caci_ExercisePrice34.10To65.04Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="ExercisePrice34.1062.48Member" id="caci_ExercisePrice34.1062.48Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="ExercisePrice45.77To54.39Member" id="caci_ExercisePrice45.77To54.39Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="ExercisePrice48.83To62.48Member" id="caci_ExercisePrice48.83To62.48Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="ExercisePrice34.10To58.40Member" id="caci_ExercisePrice34.10To58.40Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="ExercisePrice42.95To49.36Member" id="caci_ExercisePrice42.95To49.36Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="ExercisePrice36.13To65.04Member" id="caci_ExercisePrice36.13To65.04Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="ExercisePrice37.67To59.30Member" id="caci_ExercisePrice37.67To59.30Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="ExercisePrice45.77To49.36Member" id="caci_ExercisePrice45.77To49.36Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="ExercisePrice49.36Member" id="caci_ExercisePrice49.36Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageGrantDateFairValue" id="caci_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageGrantDateFairValue" type="num:perShareItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item"/>
<element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageGrantDateFairValue" id="caci_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageGrantDateFairValue" type="num:perShareItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item"/>
<element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageGrantDateFairValue" id="caci_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageGrantDateFairValue" type="num:perShareItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item"/>
<element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageGrantDateFairValue" id="caci_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageGrantDateFairValue" type="num:perShareItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item"/>
<element name="RestrictedStockAndRestrictedStockUnitsMember" id="caci_RestrictedStockAndRestrictedStockUnitsMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="ShareBasedCompensationArrangementByShareBasedPaymentEquityInstrumentsAwardsAndOptionsNonvestedNumber" id="caci_ShareBasedCompensationArrangementByShareBasedPaymentEquityInstrumentsAwardsAndOptionsNonvestedNumber" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item"/>
<element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardAndOptionsGrantsInPeriod" id="caci_ShareBasedCompensationArrangementByShareBasedPaymentAwardAndOptionsGrantsInPeriod" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="ShareBasedCompensationArrangementByShareBasedPaymentEquityInstrumentsAwardAndOptionsExercisedInPeriod" id="caci_ShareBasedCompensationArrangementByShareBasedPaymentEquityInstrumentsAwardAndOptionsExercisedInPeriod" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardAndOptionsForfeitedInPeriod" id="caci_ShareBasedCompensationArrangementByShareBasedPaymentAwardAndOptionsForfeitedInPeriod" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="ShareBasedCompensationArrangementByShareBasedPaymentEquityInstrumentsAwardAndOptionsNonvestedWeightedAverageGrantDateFairValue" id="caci_ShareBasedCompensationArrangementByShareBasedPaymentEquityInstrumentsAwardAndOptionsNonvestedWeightedAverageGrantDateFairValue" type="num:perShareItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item"/>
<element name="ShareBasedCompensationArrangementByShareBasedPaymentEquityInstrumentsAwardAndOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" id="caci_ShareBasedCompensationArrangementByShareBasedPaymentEquityInstrumentsAwardAndOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" type="num:perShareItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="ShareBasedCompensationArrangementByShareBasedPaymentEquityInstrumentsAwardAndOptionsVestedInPeriodWeightedAverageGrantDateFairValue" id="caci_ShareBasedCompensationArrangementByShareBasedPaymentEquityInstrumentsAwardAndOptionsVestedInPeriodWeightedAverageGrantDateFairValue" type="num:perShareItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="ShareBasedCompensationArrangementByShareBasedPaymentEquityInstrumentsAwardAndOptionsForfeituresWeightedAverageGrantDateFairValue" id="caci_ShareBasedCompensationArrangementByShareBasedPaymentEquityInstrumentsAwardAndOptionsForfeituresWeightedAverageGrantDateFairValue" type="num:perShareItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="StockOptionExercisePriceRangeFromThirtyPointZeroZeroToThirtyNinePointNineNineMember" id="caci_StockOptionExercisePriceRangeFromThirtyPointZeroZeroToThirtyNinePointNineNineMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="StockOptionExercisePriceRangeFromFortyPointZeroZeroToFortyNinePointNineNineMember" id="caci_StockOptionExercisePriceRangeFromFortyPointZeroZeroToFortyNinePointNineNineMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="StockOptionExercisePriceRangeFromFiftyPointZeroZeroToFiftyNinePointNineNineMember" id="caci_StockOptionExercisePriceRangeFromFiftyPointZeroZeroToFiftyNinePointNineNineMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="ManagementStockPurchasePlanMember" id="caci_ManagementStockPurchasePlanMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="DirectorStockPurchasePlanMember" id="caci_DirectorStockPurchasePlanMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueAsAdjustedForApplicableDiscount" id="caci_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueAsAdjustedForApplicableDiscount" type="num:perShareItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item"/>
<element name="StockIncentive2006PlanMember" id="caci_StockIncentive2006PlanMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="StockIncentive2006PlanAndPredecessorPlanMember" id="caci_StockIncentive2006PlanAndPredecessorPlanMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="PerformanceBasedRestrictedStockUnitsMember" id="caci_PerformanceBasedRestrictedStockUnitsMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="September2013Member" id="caci_September2013Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="September2016Member" id="caci_September2016Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="September2017Member" id="caci_September2017Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsCumulativeGrants" id="caci_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsCumulativeGrants" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="AverageSharePriceDeterminationPeriod" id="caci_AverageSharePriceDeterminationPeriod" type="xbrli:durationItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="DescriptionOfIssuanceOfAwardsCondition" id="caci_DescriptionOfIssuanceOfAwardsCondition" type="xbrli:stringItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="NumberOfAdditionalAwardsToBeIssuedPursuantToCondition" id="caci_NumberOfAdditionalAwardsToBeIssuedPursuantToCondition" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="ParticipantsMember" id="caci_ParticipantsMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="EmployeesMember" id="caci_EmployeesMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="SeniorExecutiveMember" id="caci_SeniorExecutiveMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>


<element name="EmployeeStockPurchasePlanMember" id="caci_EmployeeStockPurchasePlanMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriodOne" id="caci_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriodOne" type="xbrli:durationItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriodTwo" id="caci_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriodTwo" type="xbrli:durationItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriodThree" id="caci_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriodThree" type="xbrli:durationItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardExercisablePeriodMaximum" id="caci_ShareBasedCompensationArrangementByShareBasedPaymentAwardExercisablePeriodMaximum" type="xbrli:durationItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsVestingPercentageBasedOnDeathOrPermanentDisabilityOfGrantees" id="caci_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsVestingPercentageBasedOnDeathOrPermanentDisabilityOfGrantees" type="num:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsVestingPercentageBasedUponRetirement" id="caci_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsVestingPercentageBasedUponRetirement" type="num:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>


<element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalIntrinsicValue" id="caci_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalIntrinsicValue" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
<element name="ShareBasedCompensationNumberOfShareAuthorizedToBePurchasedByEligibleEmployee" id="caci_ShareBasedCompensationNumberOfShareAuthorizedToBePurchasedByEligibleEmployee" type="xbrli:stringItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="PercentOfEmployeeCompensationOverQuarter" id="caci_PercentOfEmployeeCompensationOverQuarter" type="num:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="PercentOfFairMarketValueOfShares" id="caci_PercentOfFairMarketValueOfShares" type="num:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardRestrictedStockIssuedInLieuOfPercentageOfAnnualBonus" id="caci_ShareBasedCompensationArrangementByShareBasedPaymentAwardRestrictedStockIssuedInLieuOfPercentageOfAnnualBonus" type="num:percentItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item"/>

<element name="FairValueByBalanceSheetGroupingLongTermAssetNoncurrentMember" id="caci_FairValueByBalanceSheetGroupingLongTermAssetNoncurrentMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="FairValueByBalanceSheetGroupingCurrentLiabilityCurrentMember" id="caci_FairValueByBalanceSheetGroupingCurrentLiabilityCurrentMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="NonCompanyOwnedLifeInsuranceAssetsFairValueDisclosure" id="caci_NonCompanyOwnedLifeInsuranceAssetsFairValueDisclosure" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
<element name="ContingentConsiderationPaymentOneMember" id="caci_ContingentConsiderationPaymentOneMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="ContingentConsiderationPaymentTwoMember" id="caci_ContingentConsiderationPaymentTwoMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="ContingentConsiderationEarnedPeriod" id="caci_ContingentConsiderationEarnedPeriod" type="xbrli:durationItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="PercentagePaidContingentConsideration" id="caci_PercentagePaidContingentConsideration" type="num:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="BankOfAmericaMember" id="caci_BankOfAmericaMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="StockRepurchaseProgramInitialRepurchaseAmount" id="caci_StockRepurchaseProgramInitialRepurchaseAmount" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
<element name="NumberOfRepurchasePlans" id="caci_NumberOfRepurchasePlans" type="xbrli:positiveIntegerItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="StockRepurchaseProgramSharesRepurchasedPricePerShare" id="caci_StockRepurchaseProgramSharesRepurchasedPricePerShare" type="num:perShareItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="DerivativeInstrumentCommonStockSharesReceivedPursuantToTermsOfCallOption" id="caci_DerivativeInstrumentCommonStockSharesReceivedPursuantToTermsOfCallOption" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="StockbasedCompensationIncludedInIndirectCostsAndSellingExpenseAbstract" id="caci_StockbasedCompensationIncludedInIndirectCostsAndSellingExpenseAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" abstract="true" nillable="true"/>

<element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentageOfSharesPurchased" id="caci_ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentageOfSharesPurchased" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" abstract="false" nillable="true"/>
<element name="SettlementOfConvertibleNotesInCash" id="caci_SettlementOfConvertibleNotesInCash" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" abstract="false" nillable="true" xbrli:balance="credit"/>
<element name="AcquisitionOfCommonStockFromCallOption" id="caci_AcquisitionOfCommonStockFromCallOption" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" abstract="false" nillable="true" xbrli:balance="debit"/>
<element name="AcquisitionOfCommonStockFromCallOptionShares" id="caci_AcquisitionOfCommonStockFromCallOptionShares" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" abstract="false" nillable="true"/>
<element name="ActionetIncMember" id="caci_ActionetIncMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" abstract="true" nillable="true"/>
</schema>
