In which project phase is Revalidation of Effort estimation typically conducted?

Revalidation of effort estimation is typically conducted during the Demonstrate phase of a project. This phase is crucial as it involves reviewing and validating the project outputs against the initial definitions and plans. At this point, teams assess whether the initial estimates of time, resources, and costs hold true based on the actual progress and findings from earlier phases of the project. It allows for adjustments and refinements to be made as necessary, ensuring that the business remains aligned with its goals and can manage expectations effectively.

In contrast, the Define phase primarily focuses on gathering requirements and outlining what needs to be accomplished rather than on validating estimates. The Design phase is about creating solutions and does not involve revalidation of earlier estimation efforts. Lastly, in the Deliver phase, the focus is on finalizing and handing over the project outputs, making it too late to conduct a comprehensive revalidation of effort estimation.