Two ways to organise changing work
In Scrum, a team selects work from a backlog for a short sprint and works toward a sprint goal. It reviews the result and adjusts its plan. Scrum also defines team responsibilities and regular events.
A Scrum Master helps everyone understand and use Scrum. They help the team improve how it works and address obstacles to its progress. The product owner is accountable for the product backlog; the Scrum Master does not decide its priorities.
In Kanban, a board shows work moving through stages such as Ready, Doing, and Done. The team limits work in progress to finish items before starting more. Work can flow continuously rather than waiting for the next sprint.
A board is not the whole method
Scrum teams may use Kanban-style boards, and Kanban teams may hold regular reviews. A board alone does not determine the method. Look at how the team selects work, handles bottlenecks, and learns from delivery.