WIP stands for work-in-progress, and establishing granular WIP limits within any given workflow is a Lean mechanic enabled within ScrumDo.
Teams familiar with the Scrum framework may not recognize they already benefit from a built-in WIP limit within the framework -- the Sprint time-box. Having a finite number of work items upon which to focus during an iteration is a WIP Limit with a low level of granularity. ScrumDo simply expands on this mechanic by allowing users to define more granular WIP limits within the workflow, itself.
WIP Limits in ScrumDo
ScrumDo affords the ability to define very granular WIP Limits throughout our workflow -- down to each cell if that's what makes sense for our context. The most common practice, however, is to establish WIP limits for cell groups that relate to a particular segment of activity.
To set limits in the tool, you'll need to navigate to your board settings and select the “Board Editor” option.
If you want to establish a WIP limit for a single cell, select the cell and enter the numbers in the boxes provided. If you want to establish a limit for a group of cells, select the header under which the cells have been related and enter your WIP Limits there. In either case, when you're done just scroll to the bottom and click save.
Now when you return to the board, you'll see the WIP limits you entered displayed (along with the number of cards in the cell).