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  <xsd:element id="ssnc_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndStockAppreciationRightsForfeituresInPeriod" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndStockAppreciationRightsForfeituresInPeriod" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ssnc_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndStockAppreciationRightsOutstandingNumber" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndStockAppreciationRightsOutstandingNumber" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
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  <xsd:element id="ssnc_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndStockAppreciationRightsVestedAndExpectedToVestExercisableNumber" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndStockAppreciationRightsVestedAndExpectedToVestExercisableNumber" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="ssnc_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndStockAppreciationRightsVestedAndExpectedToVestExercisableWeightedAverageExercisePrice" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndStockAppreciationRightsVestedAndExpectedToVestExercisableWeightedAverageExercisePrice" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="ssnc_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndStockAppreciationRightsVestedAndExpectedToVestExercisableWeightedAverageRemainingContractualTerm" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndStockAppreciationRightsVestedAndExpectedToVestExercisableWeightedAverageRemainingContractualTerm" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
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  <xsd:element id="ssnc_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndStockAppreciationRightsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndStockAppreciationRightsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
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  <xsd:element id="ssnc_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndStockAppreciationRightsVestedInPeriod" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndStockAppreciationRightsVestedInPeriod" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ssnc_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndStockAppreciationRightsVestedInPeriodFairValue" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndStockAppreciationRightsVestedInPeriodFairValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ssnc_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAssumedWeightedAverageExercisePrice" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAssumedWeightedAverageExercisePrice" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ssnc_ShareBasedCompensationArrangementByShareBasedPaymentAwardPeriodFromDateOfGrant" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardPeriodFromDateOfGrant" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
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  <xsd:element id="ssnc_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsAndStockAppreciationRightsForfeituresInPeriodWeightedAverageExercisePrice" name="ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsAndStockAppreciationRightsForfeituresInPeriodWeightedAverageExercisePrice" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ssnc_StockIssuedDuringPeriodSharesStockOptionsAndStockAppreciationRightsExercised" name="StockIssuedDuringPeriodSharesStockOptionsAndStockAppreciationRightsExercised" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ssnc_UnrealizedNetGainOnDefinedBenefitPensionPlan" name="UnrealizedNetGainOnDefinedBenefitPensionPlan" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="ssnc_EarningsPerShareLineItems" name="EarningsPerShareLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_IncomeTaxesLineItems" name="IncomeTaxesLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_AcquiredClientRelationshipsAndContractsMember" name="AcquiredClientRelationshipsAndContractsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_AlgorithmicsMember" name="AlgorithmicsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_AmendedSeniorSecuredCreditAgreementMember" name="AmendedSeniorSecuredCreditAgreementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_AmendedTwoThousandFourteenPlanMember" name="AmendedTwoThousandFourteenPlanMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_AmendmentToCreditAgreementMember" name="AmendmentToCreditAgreementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_AmericasExcludingUnitedStatesAndCanadaMember" name="AmericasExcludingUnitedStatesAndCanadaMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_AsiaPacificAndJapanMember" name="AsiaPacificAndJapanMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_BluePrismMember" name="BluePrismMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_BroadwaySquarePartnersLLPMember" name="BroadwaySquarePartnersLLPMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_CanadianSubsidiaryMember" name="CanadianSubsidiaryMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_CapitaMember" name="CapitaMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_CaptricityIncMember" name="CaptricityIncMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_CommonStockClassUndefinedMember" name="CommonStockClassUndefinedMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_CompletedTechnologyAndOtherMember" name="CompletedTechnologyAndOtherMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_CompletedTechnologyAndTradeNamesAndOtherMember" name="CompletedTechnologyAndTradeNamesAndOtherMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_CompleteFinancialOpsIncCfoMember" name="CompleteFinancialOpsIncCfoMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_CostOfSoftwareEnableServicesMember" name="CostOfSoftwareEnableServicesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_CreditAgreementMember" name="CreditAgreementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_DomanirxLlcMember" name="DomanirxLlcMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_DstAndAlgorithmicsMember" name="DstAndAlgorithmicsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_DSTSystemsIncAndEzeSoftwareAndIntralinksHoldingsIncAndCaptricityIncMember" name="DSTSystemsIncAndEzeSoftwareAndIntralinksHoldingsIncAndCaptricityIncMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_DSTSystemsIncMember" name="DSTSystemsIncMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_EMEAExcludingUnitedKingdomMember" name="EMEAExcludingUnitedKingdomMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_EquipmentAndSoftwareMember" name="EquipmentAndSoftwareMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_EquityBasedIncentivePlanTwoThousandEightMember" name="EquityBasedIncentivePlanTwoThousandEightMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_EquityBasedIncentivePlanTwoThousandFourteenTwoThousandEightAndTwoThousandSixMember" name="EquityBasedIncentivePlanTwoThousandFourteenTwoThousandEightAndTwoThousandSixMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
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  <xsd:element id="ssnc_FivePointEightSevenFiveSeniorNotesDueTwoThousandTwentyThreeMember" name="FivePointEightSevenFiveSeniorNotesDueTwoThousandTwentyThreeMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_FivePointFiveSeniorNotesDueTwoThousandTwentySevenMember" name="FivePointFiveSeniorNotesDueTwoThousandTwentySevenMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_ForeignAndStateTaxAuthorityMember" name="ForeignAndStateTaxAuthorityMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_ForeignSubsidiaryMember" name="ForeignSubsidiaryMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_FurnitureFixturesAndEquipmentMember" name="FurnitureFixturesAndEquipmentMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_GroupOfStockAwardsMember" name="GroupOfStockAwardsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_HubwiseHoldingsLimitedMember" name="HubwiseHoldingsLimitedMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_IncrementalJoinderMember" name="IncrementalJoinderMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_IndiaIncomeTaxAuthorityMember" name="IndiaIncomeTaxAuthorityMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_InnovestSystemsIncMember" name="InnovestSystemsIncMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_InternationalFinancialDataServicesLimitedPartnersMember" name="InternationalFinancialDataServicesLimitedPartnersMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_IntralinksHoldingsIncMember" name="IntralinksHoldingsIncMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_InvestrackMember" name="InvestrackMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_JointVentureInLeasingArrangementMember" name="JointVentureInLeasingArrangementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_KanasCityDowntownHotelGroupLLCMember" name="KanasCityDowntownHotelGroupLLCMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_KansasCityMissouriMember" name="KansasCityMissouriMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_MaintenanceAndTermLicensesMember" name="MaintenanceAndTermLicensesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_MarketableEquitySecuritiesMember" name="MarketableEquitySecuritiesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_MilleniumConsultingServicesMember" name="MilleniumConsultingServicesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_MineralsManagementLlcMember" name="MineralsManagementLlcMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
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  <xsd:element id="ssnc_OrbitPrivateInvestmentsLimitedPartnersMember" name="OrbitPrivateInvestmentsLimitedPartnersMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_OSharesExchangeTradedFundsMember" name="OSharesExchangeTradedFundsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_OtherUnconsolidatedAffiliatesMember" name="OtherUnconsolidatedAffiliatesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_PerformanceBasedStockOptionsMember" name="PerformanceBasedStockOptionsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_PerformanceBasedStockUnitsAwardsMember" name="PerformanceBasedStockUnitsAwardsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_PerformanceBasedStockUnitsMember" name="PerformanceBasedStockUnitsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_PerpetualLicenseMember" name="PerpetualLicenseMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_PerpetualLicensesMember" name="PerpetualLicensesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_PershingRoadDevelopmentCompanyLLCMember" name="PershingRoadDevelopmentCompanyLLCMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_PershingRoadDevelopmentCorporationLLCMember" name="PershingRoadDevelopmentCorporationLLCMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_ProfessionalServicesMember" name="ProfessionalServicesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_PutativeClaimsMember" name="PutativeClaimsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_RealEstateOfficeSpaceMember" name="RealEstateOfficeSpaceMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_RestrictedStockUnitsAndPerformanceBasedStockUnitsMember" name="RestrictedStockUnitsAndPerformanceBasedStockUnitsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_RevolvingFacilityAmendmentMember" name="RevolvingFacilityAmendmentMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_SecondAmendedAndRestatedTwoThousandFourteenStockIncentivePlanMember" name="SecondAmendedAndRestatedTwoThousandFourteenStockIncentivePlanMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_SeedCapitalInvestmentsMember" name="SeedCapitalInvestmentsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_SeniorSecuredCreditFacilitiesAndSeniorNotesMemberMember" name="SeniorSecuredCreditFacilitiesAndSeniorNotesMemberMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_SeniorSecuredCreditFacilitiesMember" name="SeniorSecuredCreditFacilitiesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_SeniorSecuredCreditFacilityTermLoanB6MemberMember" name="SeniorSecuredCreditFacilityTermLoanB6MemberMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_SeniorSecuredCreditFacilityTermLoanB7MemberMember" name="SeniorSecuredCreditFacilityTermLoanB7MemberMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_SeriesAConvertiblePreferredStockMember" name="SeriesAConvertiblePreferredStockMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_ShareBasedCompensationAwardTrancheTwoAndThereafterMember" name="ShareBasedCompensationAwardTrancheTwoAndThereafterMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_SoftwareEnabledServicesMember" name="SoftwareEnabledServicesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_StateStreetCorporationMember" name="StateStreetCorporationMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_StockAwardMember" name="StockAwardMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_StockOptionsAndStockAppreciationRightsSARSMember" name="StockOptionsAndStockAppreciationRightsSARSMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_StockRepurchaseProgramMember" name="StockRepurchaseProgramMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_TaxPeriodExpireBeforeBeingUtilizedInTwoThousandTwentyFiveMember" name="TaxPeriodExpireBeforeBeingUtilizedInTwoThousandTwentyFiveMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_TermLoanBFiveMember" name="TermLoanBFiveMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_TermLoanBFourMember" name="TermLoanBFourMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_TermLoanBMember" name="TermLoanBMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_TermLoanBOneMember" name="TermLoanBOneMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_TermLoanBSevenMember" name="TermLoanBSevenMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_TermLoanBSixMember" name="TermLoanBSixMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_TermLoanBThreeMember" name="TermLoanBThreeMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_TermLoanBTwoMember" name="TermLoanBTwoMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_TermLoansMember" name="TermLoansMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_Tier1CustomerRelationshipManagementBusinessMember" name="Tier1CustomerRelationshipManagementBusinessMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_TimeBasedOptionAndStockAppreciationRightsMember" name="TimeBasedOptionAndStockAppreciationRightsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_TwoThousandFourteenStockOptionPlanMember" name="TwoThousandFourteenStockOptionPlanMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_TwoThousandTwentyFiveMember" name="TwoThousandTwentyFiveMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_TwoThousandTwentyOneMember" name="TwoThousandTwentyOneMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_UnvestedStockOptionMember" name="UnvestedStockOptionMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_UsFederalIncomeTaxAuthorityMember" name="UsFederalIncomeTaxAuthorityMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_VieMember" name="VieMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_ClientFundsObligationsPolicyTextBlock" name="ClientFundsObligationsPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ssnc_CostOfGoodsAndServicesSoldPolicyTextBlock" name="CostOfGoodsAndServicesSoldPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ssnc_FundsReceivableAndFundsHeldOnBehalfOfClientsPolicyTextBlock" name="FundsReceivableAndFundsHeldOnBehalfOfClientsPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ssnc_RecentAccountingPronouncementsNotYetEffectivePolicyTextBlock" name="RecentAccountingPronouncementsNotYetEffectivePolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ssnc_TransactionExpensesPolicyTextBlock" name="TransactionExpensesPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ssnc_EarningsPerShareTable" name="EarningsPerShareTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_IncomeTaxesTable" name="IncomeTaxesTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ssnc_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndStockAppreciationRightsVestedAndExpectedToVestOutstandingAndExercisableTableTextBlock" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndStockAppreciationRightsVestedAndExpectedToVestOutstandingAndExercisableTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ssnc_AcquisitionDisclosuretextBlock" name="AcquisitionDisclosuretextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ssnc_ScheduleOfEstimatedUsefulLivesOfAssetsTextBlock" name="ScheduleOfEstimatedUsefulLivesOfAssetsTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ssnc_ScheduleOfSeniorSecuredCreditFacilitiesAndSeniorNotesTableTextBlock" name="ScheduleOfSeniorSecuredCreditFacilitiesAndSeniorNotesTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
</xsd:schema>
