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  <xs:element id="evcm_SocialSecurityTaxEmployerDeferralCARESAct" abstract="false" name="SocialSecurityTaxEmployerDeferralCARESAct" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="evcm_EmployeeStockPurchasePlan2021Member" abstract="true" name="EmployeeStockPurchasePlan2021Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="evcm_RoofsnapMember" abstract="true" name="RoofsnapMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="evcm_EmployeeMember" abstract="true" name="EmployeeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="evcm_StockIssuedDuringPeriodValuePreferredPlacement" abstract="false" name="StockIssuedDuringPeriodValuePreferredPlacement" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="evcm_DelayedDrawTermLoanMember" abstract="true" name="DelayedDrawTermLoanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="evcm_NumberOfCoreVerticals" abstract="false" name="NumberOfCoreVerticals" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="evcm_LegacyTermNotesMember" abstract="true" name="LegacyTermNotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="evcm_LongTermDebtExpectedPaidInKindInterest" abstract="false" name="LongTermDebtExpectedPaidInKindInterest" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="evcm_EurocurrencyMember" abstract="true" name="EurocurrencyMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="evcm_NewTermLoanMember" abstract="true" name="NewTermLoanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="evcm_UpdoxMember" abstract="true" name="UpdoxMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="evcm_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsAccountsReceivableTrade" abstract="false" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsAccountsReceivableTrade" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="evcm_CapitalizedComputerSoftwareWriteOff" abstract="false" name="CapitalizedComputerSoftwareWriteOff" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="evcm_AlertMDMember" abstract="true" name="AlertMDMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="evcm_SupplementalBalanceSheetInformationTableTextBlock" abstract="false" name="SupplementalBalanceSheetInformationTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="evcm_RelatedPartyTransactionNumberOfFormerOwnersOfAcquiredBusinessesGivenPromissoryNotes" abstract="false" name="RelatedPartyTransactionNumberOfFormerOwnersOfAcquiredBusinessesGivenPromissoryNotes" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="evcm_ShareBasedPaymentArrangementMarketConditionBasedOptionMember" abstract="true" name="ShareBasedPaymentArrangementMarketConditionBasedOptionMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="evcm_ValuationAllowanceDecreaseAsAIncreaseInEquity" abstract="false" name="ValuationAllowanceDecreaseAsAIncreaseInEquity" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="evcm_MarketingTechnologySolutionsMember" abstract="true" name="MarketingTechnologySolutionsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="evcm_ShareBasedPaymentArrangementTimeBasedOptionMember" abstract="true" name="ShareBasedPaymentArrangementTimeBasedOptionMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="evcm_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredRevenue" abstract="false" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredRevenue" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="evcm_BusinessAcquisitionProFormaAdjustmentsToNetIncomeLoss" abstract="false" name="BusinessAcquisitionProFormaAdjustmentsToNetIncomeLoss" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="evcm_StockIssuedDuringPeriodSharesPreferredPlacement" abstract="false" name="StockIssuedDuringPeriodSharesPreferredPlacement" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="evcm_GainLossOnExtinguishmentOfDebtExcludingAmountNotAddedBackToNetIncome" abstract="false" name="GainLossOnExtinguishmentOfDebtExcludingAmountNotAddedBackToNetIncome" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="evcm_BusinessCombinationContingentConsiderationLiabilityAmountPerYearIfAchievementMet" abstract="false" name="BusinessCombinationContingentConsiderationLiabilityAmountPerYearIfAchievementMet" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="evcm_ConvertiblePreferredStockDeemedDividendDistribution" abstract="false" name="ConvertiblePreferredStockDeemedDividendDistribution" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="evcm_SeriesAConvertiblePreferredStockMember" abstract="true" name="SeriesAConvertiblePreferredStockMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="evcm_MDTechMember" abstract="true" name="MDTechMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="evcm_AuditInformationAbstract" abstract="true" name="AuditInformationAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="evcm_DrChronoIncMember" abstract="true" name="DrChronoIncMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="evcm_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsSalesTaxReserve" abstract="false" name="DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsSalesTaxReserve" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="evcm_AdjustmentsToAdditionalPaidInCapitalReleaseOfNetOperatingLossValuationAllowance" abstract="false" name="AdjustmentsToAdditionalPaidInCapitalReleaseOfNetOperatingLossValuationAllowance" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="evcm_TemporaryEquityStockIssuedDuringPeriodSharesNewIssues" abstract="false" name="TemporaryEquityStockIssuedDuringPeriodSharesNewIssues" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="evcm_SubordinatedUnsecuredPromissoryNoteServiceNationIncMember" abstract="true" name="SubordinatedUnsecuredPromissoryNoteServiceNationIncMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="evcm_SeriesAAndBStockExchangeMember" abstract="true" name="SeriesAAndBStockExchangeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="evcm_AfterTaxYear2017Member" abstract="true" name="AfterTaxYear2017Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="evcm_AllMedsMember" abstract="true" name="AllMedsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="evcm_BriostackMember" abstract="true" name="BriostackMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="evcm_FormerOwnerMember" abstract="true" name="FormerOwnerMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="evcm_ClubwiseMember" abstract="true" name="ClubwiseMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="evcm_BusinessAcquisitionProFormaNetIncomeLossAttributableToCommonStockholders" abstract="false" name="BusinessAcquisitionProFormaNetIncomeLossAttributableToCommonStockholders" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="evcm_TemporaryEquityValueConversionOfConvertibleSecurities" abstract="false" name="TemporaryEquityValueConversionOfConvertibleSecurities" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="evcm_A33MileRadiusMember" abstract="true" name="A33MileRadiusMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="evcm_ShareBasedPaymentArrangementPerformanceBasedOptionMember" abstract="true" name="ShareBasedPaymentArrangementPerformanceBasedOptionMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="evcm_AmericanServiceFinanceMember" abstract="true" name="AmericanServiceFinanceMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="evcm_TemporaryEquitySharesConversionOfCommonStock" abstract="false" name="TemporaryEquitySharesConversionOfCommonStock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="evcm_InvoiceSimpleMember" abstract="true" name="InvoiceSimpleMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="evcm_PaymentOfStockIssuanceCostsInitialPublicOfferingRelatedFees" abstract="false" name="PaymentOfStockIssuanceCostsInitialPublicOfferingRelatedFees" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="evcm_PulseMMember" abstract="true" name="PulseMMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="evcm_EquitySponsorsNotesMember" abstract="true" name="EquitySponsorsNotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="evcm_RelatedPartyTransactionNumberOfFormerOwnersOfAcquiredBusinessesThatAreNoLongerAnEmployee" abstract="false" name="RelatedPartyTransactionNumberOfFormerOwnersOfAcquiredBusinessesThatAreNoLongerAnEmployee" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="evcm_NumberOfCustomers" abstract="false" name="NumberOfCustomers" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="evcm_NonEmployeeSaleOfSharesMember" abstract="true" name="NonEmployeeSaleOfSharesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="evcm_TemporaryEquityDividendRatePercentage" abstract="false" name="TemporaryEquityDividendRatePercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="evcm_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsContractAssets" abstract="false" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsContractAssets" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="evcm_NewRevolverMember" abstract="true" name="NewRevolverMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="evcm_ShareBasedPaymentArrangementOptionAndRestrictedStockUnitsMember" abstract="true" name="ShareBasedPaymentArrangementOptionAndRestrictedStockUnitsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="evcm_NumberOfDebtInstruments" abstract="false" name="NumberOfDebtInstruments" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="evcm_SecurityInformationSystemsMember" abstract="true" name="SecurityInformationSystemsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="evcm_ScheduleOfCapitalizedSoftwareTableTextBlock" abstract="false" name="ScheduleOfCapitalizedSoftwareTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="evcm_BusinessCombinationProFormaAdditionalAmortizationExpense" abstract="false" name="BusinessCombinationProFormaAdditionalAmortizationExpense" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="evcm_IncentiveAwardPlan2021Member" abstract="true" name="IncentiveAwardPlan2021Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="evcm_QiigoMember" abstract="true" name="QiigoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="evcm_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCustomerDeposit" abstract="false" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCustomerDeposit" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="evcm_RestrictedStockUnitsTimeVestingMember" abstract="true" name="RestrictedStockUnitsTimeVestingMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="evcm_TermLoanMember" abstract="true" name="TermLoanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="evcm_SocialSecurityTaxEmployerPayableCARESAct" abstract="false" name="SocialSecurityTaxEmployerPayableCARESAct" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="evcm_RemodelingMember" abstract="true" name="RemodelingMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="evcm_LongTermDebtIncludingFuturePaidInKindInterest" abstract="false" name="LongTermDebtIncludingFuturePaidInKindInterest" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="evcm_SeriesBConvertiblePreferredStockMember" abstract="true" name="SeriesBConvertiblePreferredStockMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="evcm_ServiceFusionMember" abstract="true" name="ServiceFusionMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="evcm_TemporaryEquitySharesConversionOfConvertibleSecurities" abstract="false" name="TemporaryEquitySharesConversionOfConvertibleSecurities" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="evcm_BusinessCombinationConsiderationTransferredFairValueOfEarnout" abstract="false" name="BusinessCombinationConsiderationTransferredFairValueOfEarnout" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="evcm_CreditFacilityMember" abstract="true" name="CreditFacilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="evcm_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccruedLiabilitiesAndOther" abstract="false" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccruedLiabilitiesAndOther" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="evcm_OtherAcquisitionsMember" abstract="true" name="OtherAcquisitionsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="evcm_TimelyLTDMember" abstract="true" name="TimelyLTDMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="evcm_Acquisitions2019Member" abstract="true" name="Acquisitions2019Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="evcm_DebtInstrumentGrossDiscountPremium" abstract="false" name="DebtInstrumentGrossDiscountPremium" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="evcm_EProviderSolutionsMember" abstract="true" name="EProviderSolutionsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="evcm_BaseRateOrLondonInterbankOfferedRateLIBORMember" abstract="true" name="BaseRateOrLondonInterbankOfferedRateLIBORMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="evcm_Acquisitions2021Member" abstract="true" name="Acquisitions2021Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="evcm_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingRightsMinimumInitialPublicOfferingPricePerShare" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingRightsMinimumInitialPublicOfferingPricePerShare" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="evcm_BeforeTaxYear2018Member" abstract="true" name="BeforeTaxYear2018Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
</xs:schema>
