System Analysis and Design
Unit testing is

running the system with line data by the actual user
None of these
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

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System Analysis and Design
Inverted list organization

None of these
uses an index for each key type
has records placed randomly throughout the file
Stores records sequentially but uses an index to locate records
means storing records in contiguous blocks according to a key.

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System Analysis and Design
The black-box concept:

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

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