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 begin by _____.

Entering the input items into the computer
Entering the output items into the computer
Processing the input items by doing some calculations on them
Displaying the output items
Displaying the input items

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System Analysis and Design
The black-box concept:

assumes that inputs and outputs will remain stable
All of these
assumes that the black box is independent
is invoked by describing a system in terms of inputs and outputs, leaving the transformation process a black box.
None of these

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