Kanban guide · Kanban compared
Kanban vs Waterfall: Key Differences and When to Use Each
Waterfall plans an entire project up front and moves through phases in sequence. Kanban manages a continuous flow of work items and adapts as priorities change. They suit very different kinds of work.
Key takeaways
- Waterfall plans everything up front; Kanban manages continuous flow.
- Waterfall suits stable, indivisible projects; Kanban suits continuous work.
- Kanban boards can support Waterfall phases.
Side by side
| Waterfall | Kanban | |
|---|---|---|
| Planning | Detailed, up front | Continuous replenishment |
| Structure | Sequential phases | Continuous flow through stages |
| Change | Formal change control | Re-prioritise the backlog any time |
| Delivery | At the end of the project | Whenever an item is ready |
| Progress | Phase completion and milestones | Cycle time, throughput, CFD |
| Best for | Stable, well-defined projects | Continuous, variable work |
When to use Waterfall
- Requirements are stable and well understood.
- The result only has value when complete, such as a building.
- Strict regulation requires documented, approved phases.
When to use Kanban
- Work is a stream of requests, such as support or maintenance.
- Priorities change often.
- You want to improve an existing process without reorganising.
Combining them
Kanban boards are useful even inside Waterfall projects: each phase can be managed as a board, making work visible and limiting WIP. Many organisations use a predictive plan for milestones and Kanban for day-to-day execution. See Agile vs Waterfall.
Frequently asked questions
Kanban vs Waterfall: can a Waterfall project use a Kanban board?
Yes. A Kanban board can visualise and manage tasks within each phase.
Kanban vs Waterfall: which delivers faster?
Kanban usually delivers individual items much sooner, because each item is released when ready rather than at the end of the project.
What is the difference between Kanban and Waterfall?
Waterfall plans the whole project up front and runs it in sequential phases, while Kanban pulls work continuously, delivers in small increments and adapts priorities as it goes.
Waterfall vs Kanban: when is Waterfall the better choice?
Waterfall suits projects with stable, well-understood requirements, strong regulatory sign-off needs or physical dependencies, such as many construction projects.
Kanban vs Waterfall: when is Kanban the better choice?
Kanban works better when requirements change often, work arrives continuously or the team needs to deliver value early, as in support, maintenance and digital marketing.
Can you combine Kanban and Waterfall?
Yes. Many hybrid projects keep a Waterfall phase plan and milestones while each phase's tasks are managed on a Kanban board.
Are Kanban and Waterfall both sequential?
No. A Kanban board's columns may look sequential, but work flows item by item and is delivered incrementally, rather than the whole project passing through each phase once as in Waterfall.
Do Kanban and Waterfall both use Gantt charts?
Waterfall projects usually do. Kanban relies on the board and flow metrics instead, though hybrid teams may keep a Gantt chart for milestones and dependencies.
How is progress measured in Kanban vs Waterfall?
Waterfall measures progress against a baseline schedule and budget, for example with earned value. Kanban tracks flow measures such as cycle time and throughput.
How does change control differ in Kanban and Waterfall?
Waterfall routes scope changes through formal change control. In Kanban, anything not yet started can be reprioritised at the next replenishment.
Kanban vs Waterfall: which is cheaper?
Neither is inherently cheaper. Kanban can reduce waste from building the wrong thing, while Waterfall can be efficient when requirements are truly fixed.