Final answer:
The Scrum Team should dedicate no more than 10% of the Development Team's capacity during a Sprint to refine the Scrum Product Backlog, including discussions, estimations, etc., contrary to the belief that the Product Owner is solely responsible for it.
Step-by-step explanation:
The question of how much time a Scrum Team should allocate for maintaining the Scrum Product Backlog, including discussions, estimations, and related activities, is one that pertains to Agile project management methodologies. It's a common misconception that the Product Owner is solely responsible for the Product Backlog. In reality, while the Product Owner is responsible for the Product Backlog's content, availability, and ordering, the entire Scrum Team often collaborates on backlog refinement tasks such as clarification, decomposition, and estimation of items. The Scrum Guide suggests that this refinement process should consume no more than 10% of the capacity of the Development Team during the Sprint. This allows the team to prepare items for future Sprints but does not detract significantly from the work of the current Sprint.