TAILIEUCHUNG - Lecture Software design and architecture – Chapter 22

Lecture 22 – Class responsibility collaboration cards. This chapter presents the following content: Class responsibility collaboration cards, responsibilities and collaborations, knowing responsibilities, doing responsibilities. | SOFTWARE DESIGN AND ARCHITECTURE LECTURE 22 Review Activity Diagram Outline Class Responsibility Collaboration Cards CRC Models Creating CRC Models CRC Cards CRC Cards A CRC card is divided into three sections (Beck & Cunningham, 1989; Ambler, 1995) Responsibilities and Collaborations A responsibility is anything that a class knows or does. Sometimes a class will have a responsibility to fulfill, but will not have enough information to do it. When this happens it has to collaborate with other classes to get the job done. CRC Model A CRC model is a collection of CRC cards that represent whole or part of an application or problem domain. The most common use for CRC models is to gather and define the user requirements for an object-oriented application. Collaborating cards are placed close to each other Perform The Iterative Steps of CRC Modeling Find classes Look for anything that interacts with the system, or is part of the system Ask yourself “Is there a customer?” Follow the money .

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• Software design
• Software design and architecture
• Software architecture
• Software architectural design
• Object oriented design
• Software development
• Class responsibility collaboration cards
• Software design methods
• Distributed software architecture
• Data flow software architecture
• Software requirement specification
• Software development activities
• Component based software engineering