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

Question

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

Quizplus · Accepted Answer

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.