Certified Information Systems Auditor (CISA) — Question 346

Which of the following is the BEST evidence that a project is ready for production?

Answer options

• A. A parallel test over a full processing cycle has been successful.
• B. A pilot implementation with reduced scope has been tested and approved.
• C. A detailed conversion plan has been rehearsed in two desktop exercises.
• D. Rollback procedures have been successfully tested.

Correct answer: A

Explanation

Option A is the best evidence since it demonstrates that the system has been tested under actual full processing conditions, ensuring reliability. While options B, C, and D provide useful insights into readiness, they do not encompass the full operational context as effectively as a complete parallel test.