Which role primarily facilitates backlog refinement sessions?

The role that primarily facilitates backlog refinement sessions is the Scrum Master. In this context, the Scrum Master serves as a coach and facilitator for the Scrum Team, ensuring that the backlog refinement process is effective and constructive. The Scrum Master's responsibilities include helping the Product Owner and the Development Team communicate effectively, clarifying misunderstandings, and ensuring that the team is following Scrum practices and principles.

During backlog refinement sessions, the Product Owner typically takes the lead in presenting the items in the backlog and discussing priorities, while the Development Team helps clarify requirements and assess the effort needed for various tasks. The Scrum Master facilitates this interaction, guiding discussions to ensure that the team is on track and addressing any obstacles that may arise during the refinement process.

While all roles are involved in the refinement sessions, the Scrum Master's facilitative role is crucial because they ensure that the sessions are productive and that all voices are heard. This collaboration helps prepare the product backlog for the next sprint planning and enhances the team's overall effectiveness.