Student Forums CIA Part 3: Business Knowledge for Internal Auditors Section III: Information Technology CIA Challenge exam – Part III 3 F Application and System software – Prototype

CIA Challenge exam – Part III 3 F Application and System software – Prototype

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    This forum is restricted to members of the associated course(s).

    Virginia Yu
    Participant
    Understanding the explanation “Prototyping can be used as an alternate method of application development when user requirements are difficult to specify in advance. In prototyping, user requirements are estimated at the beginning and implemented in a prototype that the users then try out. User requirements may be modified or new requirements may be recognized as a result, and the program is revised to incorporate the new or modified requirements. The process continues until the user is satisfied.”<– this part is fine but don’t understand why B, why easier  exact to existing system?
     
    11. Question ID: CIA 1192 III.94 (Topic: 3F. System Development Lifecycle and Change Controls) 

    The principal rationale for prototyping is that it is easier to

    • A. Divide a project into manageable segments at the beginning rather than to impose control after development is underway.
    • B. React to an existing application system rather than specify desired features for a future system.correct
    • C. Convert data files once rather than to reformat data continually with new project iterations.
    • D. Anticipate and plan for resource use rather than to acquire resources on short notice.wrong

    Your Incorrect Answer Explanation for D:

    Anticipating and planning for resource use is a feature of the systems development life cycle approach to system development, not prototyping.

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    Kevin Hock
    Participant

    Virginia,

    Think of it this way – if you are being asked to talk about how you want a computer program to work, is it easier to base your comments off of something you can already see and use, or talk about something that doesn’t exist yet at all? You sometime can’t know what you like or don’t like or want or don’t want until you see it. So, that is why choice B is correct – you build a little, get feedback, build more, get more feedback, and continue on and on until completion.

    Kevin

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