Answer (D) is correct . Segregation of duties is important in any environment in which control is a concern. In particular, programmers and computer operators should be kept separate because programmers have the ability to modify programs, files, and controls. Thus, they should not be allowed to also operate the computer.
Answer (A) is incorrect because Neither programmers nor project leaders have access both to programs and computers; thus, danger of control breakdowns is minimal.
Answer (B) is incorrect because Systems analysts are specifically qualified to analyze and design computer systems; the work of the systems analyst is used to guide the work of programmers. The two need to work together.
Answer (C) is incorrect because Neither programmers nor users of computer output have access to the operating computer; thus, danger is minimal.
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