Kanban vs Todo lists and Scrum

Kanban vs Todo lists

Todo lists:

Single phase (just a list of items)
Multitasking possible (not efficient)

Kanban:

Multiple phases, each column represent a step
Bring focus and avoid multitasking because you can set a work in progress limit per column

Kanban vs Scrum

Scrum:

Sprints are time-boxed, usually 2 or 4 weeks
Do not allow changes during the iteration
Estimation is required
Uses velocity as default metric
Scrum board is cleared between each sprint
Scrum has predefined roles like scrum master, product owner and the team
A lot of meetings: planning, backlog grooming, daily stand-up, retrospective

Kanban:

Continuous flow
Changes can be made at anytime
Estimation is optional
Use lead and cycle time to measure performance
Kanban board is persistent
Kanban doesn't impose strict constraints or meetings, process is more flexible