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Which of the following would be a MAJOR disadvantage of
using prototyping as a systems development methodology?
A. User expectations of project timescales may be overly
optimistic.
B. Effective change control and management is impossible to
implement.
C. User participation in day-to-day project management may
be too extensive.
D. Users usually are not sufficiently knowledgeable to
assist in system development.
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Answer: A
The fact that prototyping involves demonstrating various
external elements of a completed project to users, such as
screen layouts and printed reports, may cause a user to
believe that the project is closer to completion than it
actually is (that underlying programmed processes are also
completed). This may result in users having unrealistic
expectations of project delivery. Change control may be more
difficult, but is certainly not impossible. Users are
unlikely to be involved in day-to-day project management,
and the whole point of prototyping is that users do usually
have sufficient knowledge to assist in system development.
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