CAMPUS HOUSING SYSTEM
Consider the accompanying system, which was described in Chapter 4. Use the use cases and process models that you created in Chapters 4 and 5 to help you answer the questions that follow. The Campus Housing Service helps students find apartments. Owners of apartments fill in information forms about the rental units they have available (e.g., location, number of bedrooms, monthly rent). Students who register with the service can search the rental information to find apartments that meet their needs (e.g., a two-bedroom apartment for $800 or less per month within 1/2 mile of campus). They then contact the apartment owners directly to see the apartment and, possibly, rent it. Apartment owners call the service to delete their listing when they have rented their apartment(s).
QUESTIONS:
1. What entities would you include on a data model?
2. What attributes would you list for each entity? Select an identifier for each entity, if possible.
3. What relationships exist between the entities that you identified? Label the relationships appropriately, and denote the cardinality and modality of each relationship.