To ensure that Product Backlog items discussed at Sprint Planning are well understood, actionable, and easier to forecast, it is important for the Development Team to use some time during each Sprint to help the Product Owner analyze, estimate, and design items at the top of the Product Backlog projected to be worked on in the upcoming Sprint. This approach, known as Product Backlog refinement, is a collaborative process between the Product Owner and the Development Team that ensures items are reviewed, detailed, and estimated properly. This ongoing activity ensures items are actionable for Sprint Planning, aligns with Scrum practices, and typically uses no more than 10% of the Development Team's capacity.