DEV475 Mastering Object-Oriented Analysis and Design with UML ...

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DEV475 Mastering Object-Oriented Analysis and Design with UMLExample: Finding Control ClassesExample: Finding Control Classes• In general, identify one control class peruse case.• As analysis continues, a complex use case’scontrol class may evolve into more than oneclassStudentRegister for CoursesCourse CatalogSystemRegistrationControllerMastering Object Oriented Analysis and Design with UMLCopyright © 2003 Rational Software, all rights reserved 24One recommendation is to identify one control class per use case. However, this canbecome more than one use case as analysis continues. Remember that morecomplex use cases generally require one or more control cases. Each control class isresponsible for orchestrating/controlling the processing that implements thefunctionality described in the associated use case.In the above example, the RegistrationController class has beendefined to orchestrate the Register for Courses processing within the system.6 - 24
Module 6 - Use-Case AnalysisExample: Summary: Analysis ClassesExample: Summary: Analysis ClassesStudentUse-Case ModelRegister for CoursesCourse CatalogSystemDesign ModelRegisterForCoursesForm CourseCatalogSystem Student ScheduleCourseOfferingRegistrationControllerMastering Object Oriented Analysis and Design with UMLCopyright © 2003 Rational Software, all rights reserved 25For each Use-Case Realization, there is one or more class diagrams depicting itsparticipating classes, along with their relationships. These diagrams help to ensurethat there is consistency in the use-case implementation across subsystem boundaries.Such class diagrams have been called “View of Participating Classes” diagrams(VOPC, for short).The diagram on this slide shows the classes participating in the “Register for Courses”use case. [Note: The Part-time Student and Full-time Student classes from the Rosesolution have been omitted for brevity. (They both inherit from Student.) Classrelationships will be discussed later in this module.]6 - 25
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