Core Concepts of Accounting Information Systems 12th Edition by Carolyn Strand Norman, Mark Simkin

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Prototyping, as an IT development approach, has both advantages and disadvantages. In general, prototyping is most appropriate when:
a. The design team is not pressed for time in creating a new system
b. Users have a thorough understanding of their information needs
c. There are high risks associated with developing and implementing an ineffective system
d. System requirements are easily defined