System Analysis and Design
Unit testing is

making sure that the new programs do in fact process certain transactions according to Specifications
is checking the logic of one or more programs in the candidate system
None of these
testing changes made in an existing or a new program
running the system with line data by the actual user

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System Analysis and Design
HIPO

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

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