System Analysis and Design
System prototyping helps the designer in

communicating to the user, quickly, how the system, when developed, will look like and get a feedback.
giving a demo of the software, to the system manager to whom he reports
making the programmers understand how the system will function.
all of the listed here

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

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

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System Analysis and Design
A couple:

is a data item that moves from one module to another
means that the upper module has the capability of calling the lower module
None of these
is represented by a line joining two modules
None of these

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