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

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6.6. System Development

Your evaluation of the actual development of a system will not involve passing judgment on the coding techniques for the most part. You will be more interested in assurance that the outcomes achieved are obtained in an efficient, effective manner such that the results match closely to the expectations and that the documentation created throughout the process fairly represents the work and is sufficient to rely on when needed in the future. Processes and procedures used in the development effort will be of interest to you because they are the foundation of good control and structure that leads to predictable and reliable results that have integrity. Mapping work to the detailed work plan that should be complete and available for inspection at this point and used as a roadmap for the work being performed would be a purists approach to tracing the development, but in reality it matters very little to the resulting outcomes and the business process objective.

Of course, development is only one option for providing the software necessary to meet the functional requirements and design criteria. Purchased systems might be used to solve some or all of the need. You should expect to see evidence of build versus buy decisions and associated decision matrices as part of the analysis and design considerations as well at this point, before any development is undertaken. In situations where commercially available packages are available and capable of performing similar ...

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