Scrum

Scrum is the most widely used agile framework. It defines fixed-length iterations called sprints, three roles — product owner, scrum master, development team — and a small set of recurring meetings: planning at the start, a short daily check-in, a review of what was built, and a retrospective on how the work went.

The structure exists to force two things into a rhythm that would otherwise be skipped: deciding what matters most before the work starts, and looking honestly at how the last cycle went before the next begins.

It fits teams building a product continuously. It fits poorly where work arrives unpredictably and must be handled immediately — support and operations are better served by a flow-based approach such as Kanban, where a fixed two-week commitment is broken by the first urgent incident.