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Product Backlog grooming or refinement is the act of adding detail 🔎, estimates 📈, and order to items in the Product Backlog.
The team typically does not spend ⏳ more than 10% of the Sprint in backlog refinement.
The development team (preferably everyone, but not necessary) and the product owner participate in the refinement meeting.
Product Owner 💪 maximizes the value of the work by:
Clearly 💡 expressing the product backlog items
Ordering the items 📝 in the Product Backlog to best achieve goals and missions.