The extent to which information contained on one level of a set of nested data-flow diagrams is also included on other levels refers to:
A) DFD consistency.
B) DFD completeness.
C) DFD gap proofing.
D) DFD flexibility.
E) DFD cohesion.
A
Explanation: A) The concept of DFD consistency refers to whether the depiction of the system shown at one level of a DFD is compatible with the depictions of the system shown at other levels.
CL
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