I. Answer the following questions, based on the material in Chapter 6, Object Modeling.

  1. What is object-oriented analysis, and what are some advantages of this method?
  2. Define an object, and provide three examples.
  3. Define an attribute, and provide three examples.
  4. Define a method, and provide three examples.
  5. Define encapsulation, and explain how it is used in object-oriented analysis.
  6. Define polymorphism, and provide three examples.
  7. Define a class, subclass, and superclass, and provide three examples of each.
  8. Define an actor, and provide three examples.
  9. Define a use case and a use case diagram, and prepare a sample of each.
  10. Define the term black box, and explain why it is an important concept in object-oriented


1 Osceola auto parts
Osceola Auto Parts is an independent auto parts dealer that sells auto parts, runs tests on customers’ cars,

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and delivers parts and tools to mechanic shops around town.


1. Identify possible actors and use cases involved in Osceola’s business functions. 2. Create a use case diagram for Osceola’s operations.
3. Select one of the use cases and create a class diagram.

4. Create a sequence diagram for the use case you selected.

Oakwood Community College registration

Oakwood Community College has a student registration process similar to the one at your school. The administration asked you, as IT director, to develop a new system that would be more user-friendly. Your first task is to create an object-oriented model of the current system. You can use your school’s registra- tion process as the basis for the model.


  1. List possible objects in the registration system, including their attributes and methods.
  2. Identify possible use cases and actors.
  3. Create a use case diagram that shows how students register.
  4. Create a state transition diagram that describes typical student states and how they change based on specific actions and events.

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