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 describes the organization's activities and the regulations that guide how work is done. A data model depicts the data interactions without including implementation specifics like physical data structures or engineering techniques.

Answer: B
 To develop a data model, you must first comprehend the business' operations and how data flows through those procedures. As a result, you should be familiar with how data is processed.

Answer: D
 Data flow diagrams (DFDs) are a graphical representation of the structure and interactions among various data items. They are utilized in information system development to visualize data input and output in a process-oriented manner and to create a system design.

Answer: E
 The preparation of a Network diagram is not necessary during the conceptual data modeling phase. Network diagrams are typically used during the system design stage to show the network entities and their connections.

Which of the Following Is a True Statement