System Analysis and Design
Unit testing is

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

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System Analysis and Design
The outstanding Invoice file should be stared on a Pardon Access Storage Device if

inquires concerning payable are to be answered on-line
payment recording is done in a batch rode
invoice data entry is on-line.
None of these
last record points to the first record

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