Now that the DFD has been created, it is time to build an object model for our new system. When thinking about SIM's objects, use the entities already identified: the technicians, customers, and appointment setters. Since SIM is also interfacing with the Parts Department, it is important to use that department also as an entity.

Also, create a Use Case diagram. Make sure to identify the entities as actors and show the interaction between each of the actors. Be sure to identify at least two processes and show all the actions between them. Don't forget to include a system boundary so we can determine which actions occur within the system and which are external to SIM.

Hope you had a relaxing weekend!

Carlie