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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 ?

Use case diagram Signup and view all the answers

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

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

True Signup and view all the answers

Multiplicity is a factor which is not associated with an attribute

False Signup and view all the answers

A derived attributes is computed from other attributes

True Signup and view all the answers

In DFD what is represented by an external entity ?

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

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

attribute Signup and view all the answers