During what type of review would an examination of a specific project be done to determine what worked, what did not work and what should be changed…

A Post-Implementation Review (PIR) is a formal assessment conducted after a project's solution has been implemented and is operational. The primary goal of a PIR is to evaluate the project's success against its initial objectives and to capture valuable lessons learned. This process involves a critical examination of what aspects of the project were successful ("what worked"), what challenges were encountered ("what did not work"), and how processes or approaches can be improved for subsequent projects ("what should be changed for the future"). This makes it the precise type of review described in the question.

A. Checkpoint Review: This is an in-progress review conducted at specific milestones to assess project health and progress against the plan, not a final retrospective.

C. Phase End Review: This review is a formal decision point at the end of a project phase to determine if the project should proceed to the next phase.

D. None of the above: This is incorrect because the Post-Implementation Review is the exact term for the activities described in the question.

1. Paul, D., & Cadle, J. (2020). Business Analysis (4th ed.). BCS, The Chartered Institute for IT. In Chapter 10, "Making a Business and Financial Case," the concept of a Post-Implementation Review is detailed as the mechanism for assessing project success and capturing lessons learned after the solution is live (pp. 205-206).

2. University of California, Berkeley, Project Management Office. (n.d.). Post-Implementation Review. Project Management Framework. Retrieved from https://pm.berkeley.edu/project-management-framework/post-implementation-review. This official university documentation defines the PIR's purpose as determining "what went well and what didn’t" and identifying "lessons learned for future projects."

3. Fortune, J., & White, D. (2006). Framing of project critical success factors by a systems model. International Journal of Project Management, 24(1), 53-65. https://doi.org/10.1016/j.ijproman.2005.07.004. This academic paper discusses the importance of post-project reviews (a synonym for PIR) in identifying success factors and failures to improve future project management practice (Section 4, "The Research Methodology").