Many of the literature on kanban describes a board where you divide one status into multiple sub-categories but keeping them grouped. Example:
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| System Requirements |
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| WIP | Done |
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Here the WIP colum has a WIP constraint but the Done column does not. This allows you to clearly see bottlenecks in your flow and visually detect where problems are.
by: Ryan D. | over a year ago | Sprint Planning
Comments
The Fall 2012 release introduces multi-status WIP limits, or in other words, named column groups that can also have their own WIP limit. More details are available in the release notes:
http://community.versionone.com/Release%20Notes/ReleaseNotes2012Fall.aspx