The Apply Your Knowledge section contains four mini-cases. Each case describes a situation, explains your role in the case, and asks you to respond to questions. You can answer the questions by applying knowledge you learned in the chapter.
Student Bookstore at Pleasant Creek Community College
Situation: The bookstore staff at Pleasant Creek Community College works hard to satisfy students, instructors, and the school’s business office. Instructors specify textbooks for particular courses, and the bookstore orders the books and sells them to students. The bookstore wants you to develop an object-oriented model for a new bookstore information management system.
1. List possible objects in the bookstore operation, including their attributes and methods.
2. Identify possible use cases and actors.
3. Select one of the use cases that you identified in step 2 and create a sequence diagram.
4. Create an object relationship diagram that provides an overview of the system, including how textbooks are selected by instructors, approved by a department head, and sold to students by the bookstore.
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