Computer Sciene of Udayana State University

April 5, 2009

Data Flow Diagrams (DFD Quiz)

Filed under: Computer Science — ignaga @ 2:08 AM

  • A data flow diagram (DFD) shows how data moves through an information system but does not show program logic or processing steps
  • A set of DFDs provides a logical model that shows what the system does, not how it does it
  • The DFD is designed to show how a system is divided into smaller portions and to highlight the flow of data between those parts.
  • With a data-flow diagram, users are able to visualize how the system will operate, what the system will accomplish, and how the system will be implemented.
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