How does Scrum differ from Kanban?

Scrum and Kanban are two popular frameworks within Agile that help manage the development process. Both rely on flexibility, transparency, and gradual delivery of value, but they differ in how work is organized, how progress is measured, and the level of structure.

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#1. Approach to planning

Scrum: Work is split into short cycles - sprints (usually 1-4 weeks). Before each sprint, the team plans which tasks it will complete and fixes the scope of work. During the sprint the scope does not change - all attention is focused on achieving the goals of this cycle.

Kanban: There are no sprints or fixed iterations. Work runs as a continuous flow: as soon as one task is finished, the team picks up the next one from the queue. Planning happens dynamically - priorities can be changed at any moment.

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#2. Organizing tasks

Scrum: Uses a product backlog (a list of all tasks) from which tasks are selected for the sprint. Once the sprint starts, the list does not change until it ends. The result of each cycle is an increment - a working piece of the product.

Kanban: Works with a Kanban board, where tasks move through columns (for example: To Do → In Progress → Review → Done). The main rule is limiting the number of tasks in progress (WIP limits) to avoid overloading the team. The process is continuous and visual.

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#3. Roles and team structure

Scrum: Has clearly defined roles:

• Product Owner - sets priorities and is responsible for the product's value;
• Scrum Master - monitors the process and removes obstacles;
• Development team - implements the sprint's tasks. Scrum strictly follows a set of meetings: planning, daily stand-ups, demo, retrospective.

Kanban: There are no formal roles. The team itself decides how to organize the process. What matters is transparency of the task flow and continuous improvement of the process.

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#4. Measuring effectiveness

Scrum: Evaluates the result by sprints - how many tasks were completed in a cycle, whether the sprint goals were reached. Main metrics: velocity (team speed), burndown chart (task burn-down).

Kanban: Looks at the flow as a whole: how many tasks pass through the system per unit of time. Main metrics: lead time (time from when a task is set until it is finished) and cycle time (time to complete a specific task).

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#5. Flexibility

Scrum: More structured - requires following rituals and roles. Suits teams that need clear organization and a cyclical rhythm.

Kanban: Maximally flexible - can be introduced piece by piece, without changing current roles or processes. Ideal for support teams and projects with a constant inflow of tasks.

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#Quick comparison

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#Conclusion

Scrum is structured, rhythmic, and team-centric. Kanban is flexible, visual, and continuous. If Scrum sets a clear pace, Kanban simply shows the flow and helps improve it.