<SUBMISSION>
<ACCESSION-NUMBER>0001269847-05-000003
<TYPE>4
<PUBLIC-DOCUMENT-COUNT>1
<PERIOD>20050309
<FILING-DATE>20050310
<DATE-OF-FILING-DATE-CHANGE>20050310
<ISSUER>
<COMPANY-DATA>
<CONFORMED-NAME>TRANSACTION SYSTEMS ARCHITECTS INC
<CIK>0000935036
<ASSIGNED-SIC>7372
<IRS-NUMBER>470772104
<STATE-OF-INCORPORATION>DE
<FISCAL-YEAR-END>0930
</COMPANY-DATA>
<BUSINESS-ADDRESS>
<STREET1>224 SOUTH 108TH AVE
<CITY>OMAHA
<STATE>NE
<ZIP>68154
<PHONE>4023907600
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>224 SOUTH 108TH
<CITY>OMAHA
<STATE>NE
<ZIP>68154
</MAIL-ADDRESS>
</ISSUER>
<REPORTING-OWNER>
<OWNER-DATA>
<CONFORMED-NAME>SEYMOUR HARLAN F
<CIK>0001206705
</OWNER-DATA>
<FILING-VALUES>
<FORM-TYPE>4
<ACT>34
<FILE-NUMBER>000-25346
<FILM-NUMBER>05671626
</FILING-VALUES>
<BUSINESS-ADDRESS>
<STREET1>224 SOUTH 108TH AVENUE
<CITY>OMAHA
<STATE>NE
<ZIP>68154
<PHONE>4023907600
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>224 SOUTH 108 AVENUE
<CITY>OMAHA
<STATE>NE
<ZIP>68154
</MAIL-ADDRESS>
</REPORTING-OWNER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>edgardoc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2005-03-09</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000935036</issuerCik>
        <issuerName>TRANSACTION SYSTEMS ARCHITECTS INC</issuerName>
        <issuerTradingSymbol>TSAI</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001206705</rptOwnerCik>
            <rptOwnerName>SEYMOUR HARLAN F</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>224 S. 108 AVENUE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>OMAHA</rptOwnerCity>
            <rptOwnerState>NE</rptOwnerState>
            <rptOwnerZipCode>68154</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Non-Qualified Stock Option (right to buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>22.65</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2005-03-09</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>8000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <value>2015-03-09</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>8000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>8000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">The options are granted pursuant to the Transaction Systems Architects, Inc. (&quot;TSA&quot;)  2005 Equity and Performance Incentive Plan.  The options will vest on the earlier to occur of (i) one year following the date of grant, or (ii) the day  immediately prior to the date of the next annual meeting of stockholders of TSA following the date of grant.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>By: /s/ Victoria Finley, Attorney in Fact  For: Harlan F. Seymour</signatureName>
        <signatureDate>2005-03-10</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SUBMISSION>
