Scrum vs Kanban vs Scrumban

 

Scrum

Kanban

Scrumban

Iterations

1-4 week sprints

Continuous work alongside releases shorter than one week or bigger iterations like goals

Continuous work with short cycles for planning and longer cycles for release

Work routines

Push and pull principle mixed with early binding to team members

Pull principle with late binding to team members

Pull principle with late binding to team members

Scope limits

Sprint limits total work amount

Work in progress limits current work amount

Work in progress limits current work amount

Planning routines

Sprint planning

Release/iteration planning, demand planning

Planning on demand for new tasks

Estimation

Must be done before start of sprint

Optional

Optional

Performance metrics

Burndown

Cumulative flow diagram, lead time cycle time

Average cycle time

Continuous improvement

Sprint retrospective

Optional

Short Kaizen event as an option

Meetings

Sprint planning, daily scrum, retrospective

Can be avoided

Short Kaizen event

Roles

Product owner, Scrum master, team

Team and other work specific roles

Team and other work specific roles

Team members

Cross-functional team members

Cross-functional team members, specialization is allowed

Specialization or preference to tasks

Task size

The size that can be completed in sprint

Any size

Any size

New items in iteration

Forbidden

Allowed whenever queue allows it

Allowed whenever queue allows it

Ownership

Owned by a team

Supports multiple teams ownership

Supports multiple teams ownership

Board

Defined/reset each sprint

Persistent

Persistent

Prioritization

Through backlog

Optional

Recommended on each planning

Roles

Scrum master, product owner, team

Not defined, may vary

Not defined, may vary

Rules

Constrained process

Only a few constraints, flexible process

Slightly constrained process

Fit for

Enterprise maturity for teams working on product or especially project which is longer than a

Support and maintenance teams, continuous product manufacturing

Startups, fast-pace projects, continuous product manufacturing