System Analysis and Design
Tracing, of any input record or process, performed on a system, back to its original source, is an

conversion
report generation
audit trial
None of these
batch processing

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System Analysis and Design
Unit testing is

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

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