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Thisresearchdealswiththesoftwaremanagementprocessesthatexaminetheareaofsoftwaredevelopmentthroughthedevelopmentmodels,whichareknownas Thisstudyhasrevealedsevengreenmeasurementsofsoftwareproduct:Productivity,Usability,CostReduction,EmployeeSupport,EnergyEfficiency,Resource EfficiencyRAJIBMALLProfessorDepartmentofComputerScienceandEngineeringIndianInstituteofTechnologyKharagpurDelhi-1*****Createdbyebook *****SoftwareDevelopmentLifeCycle(SDLC)ModelSDLCprovidesaseriesofstepstobefollowedtodesignanddevelopasoftwareproductefficientlyA softwaredevelopmentlifecyclemodel(orprocessmodel):adescriptiveanddiagrammaticmodelofsoftwarelifecycle:identifiesalltheactivitiesrequiredfor productdevelopment,establishesaprecedenceorderingamongthedifferentactivities,DivideslifecycleintophasesIncontrasttosoftwarelifecyclemodels, softwareprocessmodelsoftenrepresentanetworkedsequenceofactivities,objects,transformations,andeventsthatembodystrategiesforaccomplishing softwareevolution.(AlifecyclecoversallthestagesofFind,readandcitealltheThisdocumentdescribestheSoftwareDevelopmentLifeCycle(SDLC)forsmall tomediumdatabaseapplicationdevelopmentefforts.TheSoftwareDevelopmentProcess,analysisofmodellifecycle,Comparisonbetweenfivemodelsof SoftwareEngineeringINTRODUCTIONWiththedevelopmentofTLDR9, Thereareseveralwell-knownlifecyclesemployedsuchasthewaterfallmodel,the spiralmodel,theRationalUnifiedProcess,andtheAgilemethodologySDLCActivitiesThismodulepresentsanintroductiontomodelsofsoftwaresystem evolutionandtheirroleinstructur-ingsoftwaredevelopmentItincludesareviewoftraditionalsoftwarelifecyclemodelsaswellassoft-wareprocessmodelsthat havebeenrecentlypro-posedAsoftwarelifecyclemodeliseitheradescriptiveorprescriptivecharacterizationofhowsoftwareisorshouldbedevelopedLife cyclemodelcategoryAdescriptivemodeldescribesthehistoryofhowaparticularsoftwaresystemwasdevelopedIdentificationofkeyareaswhereSEand P3Mprocessescancombineorinteracttoprovideanenhancedperformanceoroutput.Howdoscenarios,approachesandmodelsinteract?Itidentifiesthree kindsofalternativemodelsofsoftwareevolutionthatAtypicalSoftwareDevelopmentLifeCycleconsistsofthefollowingstages StagePlanningandRequirement AnalysisRequirementanalysisisthemostimportantandfundamentalstageinSDLCSoftwareDevelopmentLifeCycle,SDLCforshort,isawell-defined, structuredsequenceofstagesinsoftwareengineeringtodeveloptheintendedsoftwareproductItincludesareviewoftraditionalsoftwarelife-cyclemodelsas wellassoftwareprocessmodelsthathavebeenrecentlyproposedSuchmodelscanbeusedtodevelopmorepreciseandformalizeddescriptionsofsoftwarelife cycleactivitiesAbstractSDLCframeworkincludesthefollowingsteps:CommunicationPDFThishistorycolumnarticleprovidesatourofthemainsoftware developmentlifecycle(SDLC)modelsThischapterpresentsanoverviewoftheSDLC,alternatelifecyclemodels,andassociatedreferencesWhatisalifecycle model?Thismodulepresentsanintroductiontomodelsofsoftwaresystemevolutionandtheirroleinstructuringsoftwaredevelopment.Categoryrelationshipsand productlifespansAreviewofhowthescenarios,approachesCapsuleDescription