Create a local conceptual data model for the Branch user views of DreamHome documented in Appendix A. Compare your ER diagram with Figure 13.8 and justify any differences found.
What will be an ideal response?
Student should create an ER diagram similar to Figure 13.8. Some acceptable differences may
be:
Specialization of Staff into Supervisor and Manager may not have been identified (in
which case, Manages relationship will be between Staff and Branch). Similarly,
specialization of Owner into PrivateOwner and BusinessOwner may not have been
identified.
The ternary relationship Registers may have been identified instead as an entity,
Registration, with relationships to Staff, Client, and Branch.
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What do you when you want to remove unnecessary areas of an image?
A) You cut it B) You crop it C) You delete it D) You clip it
3
Item 5 in the figure above refers to the Active channel.
Answer the following statement true (T) or false (F)