Explain data flow diagram.
Understand the Problem
The question is asking for an explanation of what a data flow diagram is, including its purpose, components, and how it is used in modeling information systems. This will involve detailing the elements of a data flow diagram such as processes, data stores, data flows, and external entities.
Answer
A DFD shows the flow of information through a process or system.
A data flow diagram (DFD) shows the flow of information through a process or system using standardized symbols to represent data inputs, outputs, stores, and subprocesses.
Answer for screen readers
A data flow diagram (DFD) shows the flow of information through a process or system using standardized symbols to represent data inputs, outputs, stores, and subprocesses.
More Information
DFDs are useful tools for analyzing and designing systems by visually illustrating how data moves between processes, entities, and data stores.
Sources
- What is a Data Flow Diagram - Lucidchart - lucidchart.com
- What is Data Flow Diagram? - Visual Paradigm - visual-paradigm.com
- What is DFD(Data Flow Diagram)? - GeeksforGeeks - geeksforgeeks.org
