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Similar a CSCI-383 Lecture 5-6-7: Object-Oriented Design
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CSCI-383 Lecture 5-6-7: Object-Oriented Design
- 1. Lecture 5-6-7: Object-Oriented Design CSCI-383 Object-Oriented Programming & Design Ji Ruan 2009/09/23-25-28 StFX University, Canada
- 9. Your Job Your job is to develop the software that will implement the IIKH.
- 17. Component 1: The Greeter CRC card for the Greeter:
- 26. Interaction Diagrams The picture on the previous slide captures static relationships, but not the dynamic flow of messages in a senario. That information can be recorded by an interaction diagram.
- 41. State Diagram An Example: Order object
- 49. Instances and Classes There are likely many instances of recipe, but they will all behave in the same way. We say the behavior is common to the class Recipe. Since earlier our goal was to identify behavior, we ignored this distinction and concentrated on prototypical objects.
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- Reasons 1. These methods were already evolving toward each other independently. It made sense to continue that evolution together rather than apart, eliminating the potential for any unnecessary and gratuitous differences that would further confuse users. 2. By unifying the semantics and notation, they could bring some stability to the object-oriented marketplace, allowing projects to settle on one mature modeling language and letting tool builders focus on delivering more useful features. 3. They expected that their collaboration would yield improvements in all three earlier methods, helping them to capture lessons learned and to address problems that none of their methods previously handled well.