Kanban vs Scrum: What's the Difference?

Kanban and Scrum are both Agile frameworks, but they solve different problems. Choosing the wrong one doesn't just slow down delivery — it creates friction that makes the process feel worse than no process at all.

The Core Difference

Scrum organises work into fixed-length iterations (sprints). The team commits to a set of work at the start of each sprint and delivers it by the end.

Kanban organises work as a continuous flow. There are no sprints or commitments — work items move through a board from left to right, and the team focuses on limiting work-in-progress (WIP) to keep things moving.

Side-by-Side Comparison

| | Scrum | Kanban | |---|---|---| | Cadence | Fixed sprints (1–4 weeks) | Continuous flow | | Planning | Sprint planning each cycle | On-demand, as items are prioritised | | Roles | Scrum Master, Product Owner, Dev Team | No prescribed roles | | WIP limits | Implicit (sprint capacity) | Explicit, per column | | Changes mid-cycle | Discouraged during a sprint | Allowed at any time | | Ceremonies | Planning, Standup, Review, Retro | No mandatory ceremonies | | Metrics | Velocity, burndown | Cycle time, throughput, WIP | | Best for | Feature development, product teams | Support, ops, maintenance teams |

When to Use Scrum

Scrum works best when:

• You're building a product with a defined roadmap
• Work can be planned and batched into sprints
• The team benefits from regular rhythm and reflection
• Stakeholders want predictable, scheduled releases
• The team is stable and dedicated to this work

Typical users: product engineering teams, startup dev teams, cross-functional squads.

When to Use Kanban

Kanban works best when:

• Work arrives unpredictably (support tickets, bugs, ops tasks)
• Priorities change frequently — sprints would be broken constantly
• You want to reduce bottlenecks rather than increase output
• The team handles multiple types of work with different urgencies
• You want to start simple without adopting all of Scrum's structure

Typical users: customer support teams, IT ops, DevOps/platform teams, bug-fix squads.

Can You Use Both?

Yes — many teams run Scrumban, a hybrid approach:

• Use a Kanban board for visibility
• Keep sprint cadence for planning and retrospectives
• Apply WIP limits within sprints to reduce multitasking

This is particularly common in teams transitioning from Scrum to a more flow-based model, or in teams that handle both planned work and unplanned support.

Common Mistakes

Forcing Scrum on an ops team. If half your sprint gets blown up by urgent support tickets every week, Scrum is fighting your reality. Kanban is probably a better fit.

Using Kanban to avoid planning. "We do Kanban" sometimes means "we don't do planning." Kanban still requires a prioritised backlog and a clear definition of done.

Changing frameworks without changing habits. The tool doesn't fix the problem. A dysfunctional Scrum team won't become functional by switching to Kanban — you need to fix the underlying issues first.

The Bottom Line

If you're building a product in planned cycles: Scrum.
If you're handling unpredictable, continuous work: Kanban.
If you're not sure: start with Scrum, then relax the constraints as you learn what your team actually needs.