System Analysis and Design
Management's decision to rent a computer system may be based upon

operational flexibility in changing hardware
all of the listed here
tax advantages
desire to avoid a large one-time payment

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

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

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