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ISACA Certified Information Systems Auditor · Isaca
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While conducting a PIR six weeks after deployment (Option D) may provide some initial insights into the immediate performance and stability of the implemented changes, it may not capture the full range of system usage and effects over time. Waiting for a full processing cycle allows for a more comprehensive and meaningful review of the implementation's success and its alignment with organizational objectives.
Answer: D Ref CISA RM 27th edition - 3.8 Post-implementation review Page: 171 (In contrast to project closure, a post-implementation review typically is carried out in several weeks or months after project completion)
Conducting a PIR after a full processing cycle allows for a comprehensive assessment of the system's performance and effectiveness in handling real-world data and transactions. This approach ensures that the review captures a complete picture of the system's functionality, identifies any issues or challenges encountered during regular operations, and evaluates the system's ability to meet business requirements over time.