System Analysis and Design
The feasibilities studied in preliminary investigation is (are):

technical feasibility
None of these
economic feasibility
All of these
operational feasibility

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System Analysis and Design
Rapid prototyping proves the quality of a design by

both (a) and (b)
None of these
having a data flow diagram
having a program simulate the real system
having the system analyst present an overview of the design to users, programmers, and consultants

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