What is Scrum Master?
Scrum Master is the accountability responsible for making sure the team understands and applies Scrum correctly, removing impediments and protecting the team's focus. It is not a project manager: it does not assign tasks or chase deadlines. The Scrum Master acts as a facilitator, coach and change agent inside the team and across the organization, and is the guardian of the process and of continuous improvement.
In practice
Day to day, the Scrum Master facilitates the Daily — the team's 15-minute sync — runs Sprint Planning, Sprint Review and the Retrospective, and helps the team refine the backlog with the Product Owner. When an impediment appears (an unstable system, a blocked dependency on another team, an urgent demand from outside), the Scrum Master acts to resolve it or to protect the team. In more mature organizations, the role grows beyond the team, helping leaders see what really needs to change for agility to work.
What happens when it is missing
Without a dedicated Scrum Master, the Daily turns into a status meeting, the Retrospective gets skipped under delivery pressure, and impediments pile up with no owner. Scrum becomes a shell: the events happen on the calendar, but continuous improvement does not. Business pressure lands directly on the team, predictability collapses, and burnout shows up — exactly the scenario K21's CSM course is designed to prevent.
Related terms
Recommended K21 courses
Certified ScrumMaster® (CSM)
Scrum Alliance · 16 hours
Advanced Certified ScrumMaster® (A-CSM)
Scrum Alliance · 16 hours