System Analysis and Design
A self check digit is useful in detecting

transcription errors only
transposition errors only
None of these
All of these
Random errors only

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System Analysis and Design
HIPO

captures the essence of top down decomposition.
All of these
None of these
is a forms-driven technique in which standard forms are used to document the information
consists of a hierarchy chart and an associated set of input/process/ output charts

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