Data Flow Model
Definition - What does Data Flow Model mean?
A data flow model may also be known as a data flow diagram (DFD).
Techopedia explains Data Flow Model
A data flow diagram takes business processes and activities and uses them to create a clear illustration of how data flows through a system. DFDs represent the flow of data from external entities into a single system by moving and storing data from one process to another. Through the use of data flow diagrams, a system can be decomposed into subsystems, and subsystems can be further decomposed into lower-level subsystems. Each subsystem represents a process or activity in which data is processed. Once the lowest level is reached, processes can no longer be decomposed.
Data flow modeling can be used to identify a variety of different things, such as:
- Information that is received from or sent to other individuals, organizations, or other computer systems
- Areas within a system where information is stored and the flows of information within the system are being modeled
- The processes of a system that act upon information received and produce the resulting outputs
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