Scrum and Kanban get lumped together as "Agile frameworks," which is technically true and practically unhelpful — they answer different questions. Scrum answers "how do we plan and commit to a fixed batch of work?" Kanban answers "how do we keep a continuous stream of work flowing without getting stuck?"
Scrum: time-boxed commitment
Scrum organizes work into fixed-length sprints (commonly two weeks). The team commits to a specific set of items at the start of the sprint and doesn't add new work mid-sprint — new requests wait for the next planning session. This predictability is Scrum's whole point: stakeholders know exactly what's landing, and when.
Scrum fits well when:
- You're building a new product or feature set with a clear roadmap.
- Stakeholders want a reliable cadence of demos and releases.
- The team benefits from a fixed rhythm to plan around.
Kanban: continuous flow
Kanban has no sprints. Work items move across a board — typically To Do, In Progress, Review, Done — and the team pulls the next item whenever capacity opens up. Instead of committing to a batch, Kanban limits how much work can be "in progress" at once (a work-in-progress limit), which keeps the team focused and surfaces bottlenecks quickly.
Kanban fits well when:
- Work arrives unpredictably — support tickets, bug reports, ad-hoc requests.
- Priorities shift often enough that a two-week commitment would be broken constantly.
- You care more about how fast an item moves from request to done than about batching work into releases.
A common middle ground
Many teams — including ours — run a hybrid: Scrum-style sprints for planned feature work, with a separate Kanban lane for urgent fixes and maintenance that can't wait for the next sprint boundary. This avoids the classic failure mode where an "emergency" derails an entire sprint's commitments.
The framework is a tool, not a badge of honor. If your "Scrum" team re-plans every sprint because of interruptions, you're actually running Kanban with extra meetings.
How to decide
Ask one question: does new, unplanned work show up faster than you can finish a sprint? If yes, lean Kanban. If your work is mostly plannable in advance and stakeholders value a predictable release rhythm, Scrum will serve you better. Either way, the goal is the same — visible progress, short feedback loops, and no six-month surprises.