Anonymous asked in Computers & InternetProgramming & Design · 1 decade ago

What is the role of DFD in system development?

1 Answer

  • 1 decade ago
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    Well developement analysis spent 60% of the project time for the Data Flow Diagram, 20% for progamming and 20 % for testing Why?

    Because DFD is the most important area in system development it analyse all the project from the beging to the end, studying each point and each specific case in this project.

    for example if i want to do a system software to a superstore,

    i don't begin right into coding and table ...

    first of all you begin with the DFDs.

    Take all the requirements from the client and the u begin to draw ur DFD carefully and make relations between all the diagrams and the go from one level to another until u reach the highest level which is ready to be programed.

    there are many books that explain how to draw DFD's

    Try the Mastering of the Computer Science

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