What technique is useful for refining project estimates continually?

The technique that is useful for refining project estimates continually is known as Rolling Wave planning. This approach is particularly beneficial in projects where uncertainty is high, allowing for initial planning to focus on delivering near-term work while deferring detailed planning for future phases until more information becomes available.

As the project progresses and more information is gathered, estimates can be revisited and refined, aligning them more closely with the actual progress and understanding of the project. This aspect of Rolling Wave planning makes it a valuable technique in dynamic environments, as it allows project teams to adapt to changes, incorporate feedback, and improve accuracy over time.

In contrast, while forecasting involves predicting future outcomes based on historical data and trends, it does not necessarily focus on continual refinement of estimates. Agile Planning also emphasizes adaptability but does so within the framework of Agile methodologies, rather than specifically addressing the refinement of estimates over time. Benchmarking, on the other hand, refers to comparing project metrics against industry standards or best practices, which may inform future estimates but does not inherently involve a process for continuous refinement.