Kanban is an incremental, evolutionary process, based on constant improvement. The use of the "Waiting
" column depends then on your workflow, your capacity and WIP (Work in Progress) limits applied to the "Working" / "In progress" column.
Here are the 2 most common situations on which the Waiting column is used:
You should move tasks to Waiting when you are ready to be pulling new tasks
We suggest starting with the simplest approach: when planning your work for a day (or week), place as many tasks as you should be able to complete within this time in the "Waiting
" column. This will create a buffer with all your planned tasks, from which you'll be able to pull after completing previous work.
You should move a task to Waiting when it is awaiting somebody's else's approval or more information is needed to complete it
In multi-leveled teamwork, it's a common occurrence for senior team members to delegate tasks to junior team. These task then may require approval or comments from the assigning personel. Here is when you might move a task to the "Waiting
" column - you've completed the work for now, but it needs approval. Once approved, it will either be moved back to "Doing" for you to fix something, or will be moved to "Done".
While we're on smoothing out the workflow - please always remember to set a WIP limit on your "Working
You can find more information about WIP limits and boards here:
Importance of Kanban WIP limits
Kanban Board section of the Kanban Library
There are many more possible uses for the "Waiting" column, you should find a solution that works best for you and your team by testing different scenarios.
The possibilities are nearly endless!