Computer Sciene of Udayana State University

April 5, 2009

Rules of DFD / Balancing

Filed under: Computer Science — ignaga @ 1:03 AM

  • Data flow that comes into and out from one process must equal to data that comes into and out from process details in level/stage under it
  • Data flow name that comes into and out from one process must equal to data flow name that enters into and out from the process details
  • Total and outside entity name from a process must equal to the total and outside entity name from the process details
  • The matters that must be focused in DFD that has more than one level:

· Must be found balance input and output between one level and next level

· Balance between level 0 and level 1 are seen in input/output from data flow to or from terminal in level 0, while balance between level 1 and level 2 are seen in input/output from data flow to/from process concerned

· data flow name, data storage and terminal in every level must same if the object is same

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1 Comment »

  1. Thnxxxx

    Comment by sangeeta — May 15, 2014 @ 10:04 AM | Reply


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