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It transforms the analysis model created in object-oriented analysis into a design model that serves as a blueprint for software construction.
It must describe the specific data organization of attributes and the procedural detail of individual operations. Software Engineering Five Basic Principles of Design
Linguistic modular units
Small interfaces/Weak Coupling
Information Hiding Software Engineering Object-oriented Design Methods
Booch Method - It involves a "micro-development" process and a "macro- development" process.
Coad and Yourdon Method - It addresses not only the application but also the infasturcture for the application.
Jacobson Method - It emphasizes the traceability of the OOSE analysis model. Software Engineering Object-oriented Design Methods
Rambaugh Method - It encompasses a design activity that encourages design to be conducted at two different levels of abstraction. System design focuses on the layout for the components that are needed to complete the product. Object design emphasizes the detailed layout of an individual objects.
Wirfs-Brock Method - It defines a continuous tasks in which analysis leads seamlessly into design. Software Engineering Common Steps to All OOD
STEP 1: Define the subsystems of the software by determining data-related subsystems (entity design), control-related subsystems (controller design), and human interaction-related subsystems (boundary design). This should be guided by the software architecture of choice.
STEP 2: Define Class and Object Design
STEP 3: Define Message Design Software Engineering OO Design Main Work Products
Deployment Design Software Engineering Summary
Purpose - To transform analysis model into a blueprint of software construction