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Data Flow Diagram - Please Help RRS feed

  • Question

  • Hello there. I am not sure that this is the right forum, but it is the closest I found. So I need help with my homework here a bit. I need to design DataFlowDiagram for my database and ER Model. I had a assignment to create a database that manages users who are using computers and then I need to record on what time it was. So I created my database, then I created ER Model.

     

    ER Model (Chen)

    (user)1---n(session)n---1(computer)

     

    My databases looks like this:

    (user)

    -id

    -name

    -surname

    -address

     

    (computer)

    -id

    -cpu

    -ram

     

    (sessions)

    -id

    -userID

    -computerID

    -time (this is where I record time the user was using this PC for instance 02.03.09 2000-2300)

     

     

    My teacher told me that everything is correct, but now I need to create DataFlowDiagram. I searched internet today and I can't find the answer. From what I've searched in my mind it looks like this.

    ImageShack - http://img408.imageshack.us/img408/1338/dfded.jpg

     

    Please help me with this one, I have many practical experiences, but when it comes to this I really need your help guys.

     

     

    -Qmal


    Someone who was compiled, not born.
    Wednesday, June 16, 2010 3:03 PM

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