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UML用例设计北大博士汤涛.pdf

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UseCaseDesign 汤涛 tangt@sinosoft.com.cn Agenda „WhatisdoneUse-CaseDesign „InputstoUse-CaseDesign „Resultingartifacts „Use-CaseRealizationwithdesign mechanisms „InteractionDiagrams „ClassDiagram „UnifiedDesignClasses WhatisdoneinUse-CaseDesign? „Incorporateinterfaces(identifiedin ArchitecturalDesign)intoUse-Case realization „Identifynewsubsystems–reuse opportunities „Describetransactions „IncorporationofarchitectureintoUse-Case realization InputstoUse-CaseDesign „Use-CaseModel „Use-CaseRealization(Analysis) „DesignGuidelines–DesignMechanisms StepsInvolved IncorporateInterfacesintoRealization IdentifynewSubsystems(optional) DescribeTransactions IncorporateDesignMechanismsinto Realization Example:Subsystems AnalysisClassesDesignElements <<boundary>> BillingSystem<<subsystem>> BillingSystem //submitbill()IBillingSystem makePayment(Movie,Amount,Customer) <<boundary>> MovieCatalogSystem<<subsystem>> MovieCatalogSystem //getcourseofferings()IMovieCatalogSystem getMovieListing(today):MovieList Example:BeforeIncorporatingSSinterface :BookingMovieForm:BookingController:MovieCatalogSystem:Schedule:Customer :Customer 1.//createschedule() 1.1.//getmovielisting() Customerwishesto Bookamovie1.1.1.//getmovieofferings(today) 1.2.//displaymovielisting() Alistoftheavailable moviefortoday aredisplayed Amovieschedule1.3.//displaymovieschedule() isdisplayedforthe customertoselect movie 2.//selectamovie() 2.1.//createschedulewithmoviedetail() 2.1.1.//createwithmoviedetail() 2.1.2.//addschedule(Schedule) Atthispoint,theSubmitSchedulesubflowisexecuted Example:AfterIncorporatingSSinterface :BookingMovie:BookingController:IBookingCatalog:Schedule:Customer :CustomerFormSystem 1://createschedule() 1.1.//getmovielisting() Studentwishesto createanew1.1.1.//getmovieofferings(today) schedule 1.2://displaymovielisting() Alistoftheavailable moviefortodayReplacedwithsubsysteminterface aredisplayed Amovieschedule1.3://displayschedule() isdisplayedforthe c