A Cumulative Flow Diagram (CFD) is an area chart that shows the various statuses of work items for a particular time interval. The horizontal x-axis in a CFD indicates time, and the vertical y-axis indicates cards (issues). Each coloured area of the chart equates to a workflow status (i.e. a column on your board).
A CFD can be useful for identifying bottlenecks. If your chart contains an area that is widening vertically over time, the column that equates to the widening area will generally be a bottleneck.
Viewing the CFD
To view the cumulative flow chart:
- Navigate to the desired board.
- Click Reports.
- Select Cumulative Flow Diagram from the Reports dropdown at the top of the page.
The CFD for the version will be displayed (see screenshot below).
- If you want to restrict the data to a particular project, version or sprint, create a quick filter and apply it via Refine report > Quick Filters on this report.
Refining the CFD
- The CFD is based upon your column mapping. For example, an issue is considered complete, when it is in a status that is mapped to the rightmost ('successful') column on the column configuration for your board.
- To re-draw the chart excluding a column(s) or swimlane(s), or to apply a quick filter, click Refine.
- To select a different timeframe (past week/past month/past 3 months/past 6 months/all time/custom), click the date range at the top of the chart.
- To select a different date range, drag your cursor across the 'Overview' at the bottom of the chart.
Note that the CFD is board-specific, that is, it will only include issues which match your board's Saved Filter.