System Analysis and Design
The two classification of inputs are:

energies and maintenance
maintenance and signal
products and waste
maintenance and waste
None of these

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System Analysis and Design
Sequential or series testing is

making sure that the new programs do in fact process certain transactions according to Specifications
testing changes made in an existing or a new program
running the system with line data by the actual user
is checking the logic of one or more programs in the candidate system

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