System Analysis and Design
Which of the following is not true of the conversion phase of the development life cycle?

documentation should be emphasized
the non machine components of the system should be considered
the user and systems personnel must work closely together
steps must be taken to phase out the old system

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System Analysis and Design
The black-box concept:

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
assumes that inputs and outputs will remain stable
All of these

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