October 2004
Beginner to intermediate
736 pages
15h 38m
English
book
Applying UML and Patterns: An Introduction to Object-Oriented Analysis and Design and Iterative Development, Third Edition
by Craig Larman
Content preview from Applying UML and Patterns: An Introduction to Object-Oriented Analysis and Design and Iterative Development, Third Edition
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Chapter 17. GRASP: Designing Objects with Responsibilities
Understanding responsibilities is key to good object-oriented design. | ||
| --Martin Fowler | ||
This chapter and the next contribute significantly to an understanding of core OO design (OOD). OOD is sometimes taught as some variation of the following:
After identifying your requirements and creating a domain model, then add methods to the appropriate classes, and define the messaging between the objects to fulfill the requirements.
Ouch! Such vague advice doesn't help us, because deep principles and issues are involved. Deciding what methods belong where and how objects should interact carries consequences and should be undertaken ...
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