System Analysis and Design
The black box concept is based on the assumption(s) that;

the relationship between the inputs and output is stable
black boxes are dependent or environments
the suprasystem is stable
None of these
All of these

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System Analysis and Design
Sequential or series 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
testing changes made in an existing or a new program
is checking the logic of one or more programs in the candidate system

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System Analysis and Design
A menu-driven system

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

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