According to ‘A Guide to the Business Analysis Body of Knowledge’, the two most common data models are the entity-relationship diagram and what other model?

According to ‘A Guide to the Business Analysis Body of Knowledge’, the two most common data models are the entity-relationship diagram and what other model?
A . Class model
B . Project network diagram
C . Data flow diagram
D . WBS

View Answer

Answer: A

Explanation:

The class model is most often used with object-oriented development, while the entity-relationship diagram is preferred for relational databases.

Answer. D is incorrect. WBS isn’t a data model, but a decomposition of the project scope.

Answer. B is incorrect. The project network diagram is an illustrated flow of project activities.

Answer. C is incorrect. A data flow diagram shows how data moves into, through, and out of a system.