System Analysis and Design
Which of the following does not occur in phase - 4 of the system development life cycle (SDLC)

test the new system
conduct interviews
acquire hardware and software
train users
None of these

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System Analysis and Design
The black-box concept:

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

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