When is retrospective analysis generally preferred over prospective methods?

Retrospective analysis is particularly valuable when focusing on completed projects and their outcomes. This approach allows for an in-depth examination of the processes, challenges, and successes that occurred during the project lifecycle. By analyzing what has already happened, project managers and planners can gain insights into the effectiveness of various strategies, identify lessons learned, and understand the impact of different decisions.

In the context of completed projects, retrospective analysis serves as a tool for improving future performance by using actual data and experiences to inform upcoming projects. This process benefits from the availability of comprehensive historical data and outcomes, making it easier to assess key factors and their influence on project success or failure.

This is distinct from prospective methods, which focus on predicting future events based on forecasts or assumptions. While flexible project timelines may allow for more adaptable planning, retrospective analysis specifically targets the review of finalized work to extract valuable lessons and insights.