System Analysis and Design
A system investigation may result from

a scheduled systems reviewed
All of these
an analysis investigation
a manager's formal request
None of these

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System Analysis and Design
Unit testing is

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

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