CG152 Introduction: slide 1 CS223 Introduction: slide 1 Class Identification Object-oriented modelling requires Class identification: –Finding classes for a new software system (Greenfield Engineering) –Identifying classes in an existing system (Reengineering) –Creating class-based interface to a system (Interface Engineering) Class identification uses: – Philosophy –Science –Experimental evidence Difficulty in identifying classes: –Determining the purpose of a system
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