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DFD Levels: Understanding the Difference
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DFD Levels: Understanding the Difference

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Questions and Answers

What distinguishes a level one DFD from a level Zero DFD?

A behaviorally related sequence of steps, both automated and manual, for the purpose of completing a single business task

  • Corporate Protocol
  • Company Operation
  • Use case (correct)
  • Business procedure

    • What is Level Zero DFD?

    Which of the following UML diagrams has a static view ?

    <p>Use case diagram</p> Signup and view all the answers

    What should every data flow connect to in a Level one DFD ?

    Signup and view all the answers

    One difference between system flowcharts and data flow diagram is that system flowcharts show condition logic whereas DFDs don't

    <p>True</p> Signup and view all the answers

    Multiplicity is a factor which is not associated with an attribute

    <p>False</p> Signup and view all the answers

    A derived attributes is computed from other attributes

    <p>True</p> Signup and view all the answers

    In DFD what is represented by an external entity ?

    <p>An object, often a human , that interacts with the system</p> Signup and view all the answers

    ____is named property of a class which describes the object being modeled

    <p>attribute</p> Signup and view all the answers

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