1. Create an object relationship diagram for the Personal Trainer information system 2. Create a use case diagram for Member Purchase, Bill Member, and Track Usage use case

3. Create a class diagram for the use case your created for #2, the question above

Continuing Case: Personal Trainer, Inc. Background Working as an IT consultant for Personal Trainer, Susan Park used data and process modeling tools to create a logical model of the proposed information system. Now she wants to build an object-oriented view of the system using O-O tools and techniques. Before you perform the fol- lowing tasks, you should review the information and background in Chapters 1 and 2, and the fact-finding summary of the case provided in Chapter 4