What is Data Flow Diagram (DFD) ?
Data Flow Diagram (DFD) is a graphical representation of data flow in any system. It is capable of illustrating incoming data flow, outgoing data flow and store data. Data flow diagram describes anything about how data flows through the system.
Levels in Data Flow Diagrams (DFD)
In Software engineering DFD(data flow diagram) can be drawn to represent the system of different levels of abstraction. Higher-level DFDs are partitioned into low levels-hacking more information and functional elements. Levels in DFD are numbered 0, 1, 2 or beyond. Here, we will see mainly 3 levels in the data flow diagram, which are: 0-level DFD, 1-level DFD, and 2-level DFD.
Table of Content
- What is Data Flow Diagram (DFD) ?
- Levels in Data Flow Diagram (DFD)
- Advantages of using Data Flow Diagrams (DFD)
- Disadvantages of using Data Flow Diagram (DFD)
- Conclusion
- Frequently Asked Questions on Levels of Data Flow Diagram (DFD)