Data Flow Diagram (Other Diagrams)

Data Flow Diagram (DFD) shows a flow of data in a process or a system. It also depicts inputs and outputs.

Data Flow Diagram is made up from these elements:

  • Flow
  • Process
  • Data Store
  • External

There are two notations of data flow diagrams:

  • Yourdon/DeMarco
  • Gane & Sarson
Data Flow Diagram (Yourdon/DeMarco)
Data Flow Diagram (Yourdon/DeMarco)
Data Flow Diagram (Gane&Sarson Notation)
Data Flow Diagram (Gane&Sarson Notation)

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