1. Identify possible use cases and actors, and create a use case diagram for the New Century Health Clinic system.

2. Select one of the use cases and create a class diagram.

3. Create a sequence diagram for the use case that you selected.

4. Create a state transition diagram that describes typical patient states and how they change based on specific actions and events.

You began the systems analysis phase at New Century Health Clinic by completing a series of interviews, reviewing existing reports, and observing office operations. Then, in Chapter 5, you acquired more information and developed a set of DFDs, process descriptions, and a data dictionary.

Now you decide to practice the object modeling skills you learned in this chapter. Before you begin, go back to Chapter 5 and review the New Century background material and fact-finding results. Also, your instructor may provide you with a complete set of interview summaries that you can use to perform your assignments. Then complete the following tasks.