信管专业英语翻译第11篇

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1、TheTenPhasesofSystemDevelopmentLifeCycleTheSystemDevelopmentLifeCycle(SDLC)includestenphasesduringwhichdefinedITworkproductsarecreatedormod讦ied.Thetenthphaseoccurswhenthesystemisdisposedofandthetaskperformediseithereliminatedortransferredtoothersystems.Noteve

2、ryprojectwillrequirethatthephasebesequentiallyexecuted.However;thephasesareinterdependent.Dependinguponthesizeandcomplexityoftheproject,phasesmaybecombinedormayoverlap・InitiationPhaseTheinitiationofasystem(orproject)beginswhenabusinessneedoropportunityisident

3、ified•AProjectManagershouldbeappointedtomanagetheproject・ThisbusinessneedisdocumentedinaConceptProposal.AftertheConceptProposalisapproved,theSystemConceptDevelopmentPhasebegins.SystemConceptDevelopmentPhaseOnceabusinessneedisapproved,theapproachesforaccomplis

4、h!ngtheconceptarereviewedforfeasibilityandappropriateness.TheSystemsBoundaryDocumentidentifiesthescopeofthesystemandrequiresSeniorOfficialapprovalandfundingbeforebeginningthePlanningPhase・PlanningPhaseTheconceptisfurtherdevelopedtodescribehowthebusinesswillop

5、erateoncetheapprovedsystemisimplemented,andtoassesshowthesystemwillimpactemployeeandcustomerprivacy.Toensuretheproductsand/orservicesprovidetherequiredcapabilityontimeandwithinbudget,projectresources,activities,schedules,tool,andreviewsaredefined.Additionail%

6、securitycertificationandaccreditationactivitiesbeginwiththeidentificationofsystemsecurityrequirementsandthecompletionofahighlevelvulnerabilityassessment.RequirementsAnalysisPhaseFunctionaluserrequirementsareformallydefinedanddelineatetherequirementsintermsofd

7、ata,systemperformanee,security,andmaintainabilityrequirementsforsystem.Allrequirementsaredefinedtoalevelofdetailsufficientforsystemsdesigntoproceed.AllrequirementsneedtobemeasurableandtestableandrelatetothebusinessneedoropportunityidentifiedintheInitiationPha

8、se.DesignPhaseThephysicalcharacteristicsofthesystemaredesignedduringthisphase.Theoperatingenvironmentisestablished,majorsubsystemsandtheirinputsandoutputsaredefined,andprocessesareallocat