1.4. What Is Object-Oriented Analysis and Design?
During object-oriented analysis, there is an emphasis on finding and describing the objects—or concepts—in the problem domain. For example, in the case of the library information system, some of the concepts include Book, Library, and Patron.
During object-oriented design, there is an emphasis on defining software objects and how they collaborate to fulfill the requirements. For example, in the library system, a Book software object may have a title attribute and a getChapter method (see Figure 1.2).
Figure 1.2. Object-orientation emphasizes representation of objects.
Finally, during implementation ...
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