Which of the following is a True statement?
A) A data model explains what the organization does and what rules govern how work is done in the organization.
B) To construct a data model, you need to know how data are processed.
C) To construct a data model, you need to know when data are processed.
D) A data flow diagram graphically illustrates the structure and relationships among data items.
E) During conceptual data modeling, the preparation of a Network diagram is necessary.

Question

Quizplus · Accepted Answer

A data model is a representation of an organization's data which explains what the organization does and what rules govern how work is done in the organization.

Option B is incorrect because to construct a data model, one does not necessarily need to know how data are processed.

Option C is incorrect because again, knowing when data is processed is not a requirement for constructing a data model.

Option D is incorrect because a data flow diagram historically illustrates the movement of data through a system, not the structure and relationships among data items.

Option E is incorrect because preparing a network diagram is not a requirement during conceptual data modeling.

Which of the Following Is a True Statement