Mostly, first component of the DFD is:

Options
- Process
- Flow
- Entity
- Level

CORRECT ANSWER : Process

Discussion Board
Data Flow Diagram

Answer: Process
Solution: Data Flow Diagram: Data flow diagram is used for graphical representation of the flow of data. Components of DFD:

1. Process: process is represented by a rectangle. It is used to represent transformation of data.

2. Dataflow: Dataflow is represented by arrows. It is used to represent how data flows in the system.

3. External Entity: External Entity is represented by Square. It is used to represent source or destination of a data flow.

4. DataStore: Datastore represented by an open-ended rectangle. It is used to represent storage area.
Therefore, the first component of the DFD is a process.


Rohit Srivastava 07-28-2014 02:41 AM

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