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

Module 6 - Use-Case AnalysisWhat Is an Analysis Class?What Is an Analysis Class?SystemboundarySysteminformationUse-casebehaviorcoordinationSystemboundarySysteminformationMastering Object Oriented Analysis and Design with UMLCopyright © 2003 Rational Software, all rights reserved 13Analysis classes represent an early conceptual model for “things in the system thathave responsibilities and behavior.” Analysis classes are used to capture a “first-draft”rough-cut of the Object Model of the system.Analysis classes handle primarily functional requirements. They model objects fromthe problem domain. Analysis classes can be used to represent "the objects we wantthe system to support" without making a decision about how much of them tosupport with hardware and how much with software.Three aspects of the system are likely to change:• The boundary between the system and its actors• The information the system uses• The control logic of the systemIn an effort to isolate the parts of the system that will change, the following types ofanalysis classes are identified with a “canned” set of responsibilities:• Boundary• Entity• ControlStereotypes may be defined for each type. These distinctions are used duringAnalysis, but disappear in Design.The different types of analysis classes can be represented using different icons or withthe name of the stereotype in guillemets (>): , , .Each of these types of analysis classes are discussed on the following slides.6 - 13