軟體處理程序與需求分析需求工程處理程序

軟體處理程序與需求分析

需求工程處理程序

.2OutlineIntroductionAnalysismodelObjectModelDynamicModelAnalysisactivitiesIdentifyingentityobjectsIdentifyingboundaryobjectsIdentifyingcontrolobjectsMappingusecasestosequencediagramModelinginteractionsamongobjectswithclassdiagram.3SoftwarelifecycleSoftwarelifecycleDevelopmentcycleDesignImplementationTestingMaintenanceRequirementsEngineeringRequirementsElicitationSystemdesignObjectdesignAnalysisUseCasesProblemstatementAnalysisModel.4RequirementsengineeringAnalysisProblemstatementRequirementselicitationNonfunctionalrequirementsDynamicmodelObjectmodelFunctionmodel(Usecase)AnalysisModelSpecificationRequirements.5AnalysismodelItemsModelsPurposeRepresentationObjectmodelSpecifyingpropertiesandrelationshipofindividualconceptsthataremanipulatedbythesystem.(指出系統(tǒng)的所有物及關(guān)係)ClassdiagramsDynamicmodelRepresentingthebehaviorsandinteractionsamongasetofobjects.(表示出物件間的行為及互動(dòng))Sequencediagrams.6ObjectmodelTheobjectmodelconsistsof:EntityobjectsRepresentingthepersistentinformationtrackedbythesystem.(和系統(tǒng)有關(guān)的資料實(shí)體)BoundaryobjectsRepresentingthesysteminterfacewiththeactors.(表示系統(tǒng)和使用者的介面)ControlobjectsControlobjectsareresponsibleforcoordinatingboundaryandentityobjects.(entityobject和boundaryobject溝通的object)Modelinginteractionsamongobjectswithclassdiagrams.(classdiagram來表示object間的相互作用).7DynamicmodelSequencediagramsrepresenttheinteractionsamongasetofobjectsfromobjectmodelduringasingleusecase.(表示物件的互動(dòng)關(guān)係(有時(shí)間順序的))可以幫助我們確認(rèn)usecase

.8AnalysisAnalysisactivitiesUseCasesDynamicmodelIdentifyingentityobjectsIdentifyingboundaryobjectsMappingusecasestosequencediagramModelinginteractionsamongobjectswithclassdiagramSequencediagramsAnalysisModelIdentifyingcontrolobjectsObjectmodelClassdiagrams.9Usecase(input)Usecasename建立作業(yè)ParticipatingactorsInitiatedby老師

Flowofevents老師要建立作業(yè).老師輸入作業(yè)的名稱(50字元),作業(yè)的要求(2000字元),截止日期(日期格式).系統(tǒng)檢查輸入的作業(yè)名稱,作業(yè)的要求,截止日期是否正確.如果正確,系統(tǒng)就建立作業(yè).Exceptions3.1如果所輸入的資料不正確,系統(tǒng)要求使用者重新輸入.Entrycondition老師己登入教學(xué)網(wǎng)站.Exitconditions老師在教學(xué)網(wǎng)站上建立了一個(gè)新的作業(yè)..10HeuristicsforidentifyingentityobjectsTermsthatdevelopersorusersneedtoclarifyinordertounderstandtheusecase.(清楚了解及usecase)Recurringnounsintheusecase.(找出名詞)Real-worldentitiesthatthesystemneedstotrack.(現(xiàn)實(shí)中的實(shí)體)Real-worldactivitiesthatthesystemneedstotrack.(現(xiàn)實(shí)中的活動(dòng)/行為)Datasourcesorsinks.(資料)RecurringAdjectiveintheusecase,itisAttributeofobject(屬性).11IdentifyingEntityObject(foundouttheclassname)Usecasename建立作業(yè)ParticipatingactorsInitiatedby老師

Flowofevents老師要建立作業(yè).老師輸入作業(yè)的名稱(50字元),作業(yè)的要求(2000字元),截止日期(日期格式).系統(tǒng)檢查輸入的作業(yè)名稱,作業(yè)的要求,截止日期是否正確.如果正確,系統(tǒng)就建立作業(yè).Exceptions3.1如果所輸入的資料不正確,系統(tǒng)要求使用者重新輸入.Entrycondition老師己登入教學(xué)網(wǎng)站.Exitconditions老師在教學(xué)網(wǎng)站上建立了一個(gè)新的作業(yè).老師作業(yè)系統(tǒng).12IdentifyingEntityObject(foundouttheattribute)Usecasename建立作業(yè)ParticipatingactorsInitiatedby老師

Flowofevents老師要建立作業(yè).老師輸入作業(yè)的名稱(50字元),作業(yè)的要求(2000字元),截止日期(日期格式).系統(tǒng)檢查輸入的作業(yè)名稱,作業(yè)的要求,截止日期是否正確.如果正確,系統(tǒng)就建立作業(yè).Exceptions3.1如果所輸入的資料不正確,系統(tǒng)要求使用者重新輸入.Entrycondition老師己登入教學(xué)網(wǎng)站.Exitconditions老師在教學(xué)網(wǎng)站上建立了一個(gè)新的作業(yè).作業(yè)名稱作業(yè)要求截止日期.13HeuristicsforidentifyingboundaryobjectsIdentityuserinterfacecontrolsthattheuserneedstoinitiatetheusecase.(user怎樣去開始usecase)Identityformstheuserneedstoenterdataintothesystem.(使用者要給系統(tǒng)的資料)Identitynoticesandmessagethesystemusestorespondtotheuser.(user怎樣和系統(tǒng)溝通).14HeuristicsforidentifyingcontrolobjectsIdentityonecontrolobjectperusecase.(從usecase去找出一個(gè)controlobject)Identityonecontrolobjectperactorintheusecase.(從actor去找出一個(gè)controlobject).15HeuristicsfordrawingsequencediagramsThefirstcolumnshouldcorrespondtotheactorwhoinitiatedtheusecase.(第一行是actor)Thesecondcolumnshouldbeaboundaryobject(thattheactorusedtoinitiatetheusecase).(第二行是boundaryobject)Thethirdcolumnshouldbethecontrolobjectthatmanagestherestoftheusecase.(第三行是controlobject)Controlobjectsarecreatedbyboundaryobjectsinitiatingusecases.(controlobject是被boundary所建立)Boundaryobjectsareaccessedbycontrolobjects.(boundaryobject是存取controlobject)Entityobjectsareaccessedbycontrolandboundaryobjects.(entityobject是被controlobject和boundaryobject存取).16Sequencediagram(1)

AAFormBBControlCCEntityDDEntityactorboundaryobjectcontrolobjectEntityobjects.17Sequencediagram(2)老師

建立作業(yè)()?new?建立作業(yè)Form建立作業(yè)Control作業(yè)輸入(名稱,要求,截止日期)檢查(..)UMLsequencediagramforAnnounceTournament,tournamentcreationworkflow老師要建立作業(yè).老師輸入作業(yè)的名稱(50字元),作業(yè)的要求(2000字元),截止日期(日期格式).系統(tǒng)檢查輸入的作業(yè)名稱,作業(yè)的要求,截止日期是否正確.如果正確,系統(tǒng)就建立作業(yè).?new?.18Filltheoperationtoclas