Product Backlog

The Product Backlog is owned by the Product Owner and is never complete — it evolves as the product and its environment evolve. Items at the top are refined, well-understood, and ready for Sprint selection. Items lower down are less detailed. Backlog items typically take the form of user stories, features, technical debt, bugs, or enablers. Each item has a description, order, estimate, and value. Product Backlog refinement (grooming) is the ongoing activity of adding detail, estimates, and order. The Product Backlog is the only input to Sprint Planning — the team selects items from the top of the backlog based on the Sprint Goal and their capacity.