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The CISA® Prep Guide: Mastering the Certified Information Systems Auditor Exam by John Kramer

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Chapter 6. Business Application Systems Development, Acquisition, Implementation, and Maintenance

This chapter and the associated CISA exam content area cover the evaluation and assessment of building and maintaining those applications that businesses use to perform their work. Knowledge of this subject matter creates 16 percent of the exam content. We have covered many of these items previously in a slightly different context, but the concepts are worth revisiting here—not only because they are equally applicable but because they are universal concepts that need to be mastered by the information systems (IS) auditor, and the review and repetition will begin to solidify your required understanding of these principles for continuous use as part of your auditing toolkit. Under the hood, the more seasoned and experienced IS auditors normally perform detailed business application auditing. This situation occurs because you must first understand the general concepts that we covered in previous content areas in order to apply those same principles to the development disciplines required in application development. The new concepts that are unique to these user interface systems will have these principles applied to them, as well. Developers' methodologies must also be well known to the IS auditor in order for them to adequately and effectively compare the work they are reviewing to those models.

The processes by which application systems are developed or acquired will follow many familiar ...

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