System Analysis and Design
Unit testing is

running the system with line data by the actual user
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
testing changes made in an existing or a new program
None of these

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System Analysis and Design
Most algorithms follow the format of

Entering the input items, then processing the output items, and then displaying the output items
Entering the input items, then displaying the input items, and then processing the output items
Entering the input items, then processing the input items, and then displaying the output items
Entering the output items, then processing the output items, and then displaying the output items
Entering the output items, then displaying the output items, and then processing the output items

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System Analysis and Design
A menu-driven system

increases the operator's work
presents options and allows the user to make selections
can be used only by computer professionals
None of these
is required only for on-line systems

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