Documentation for GreenHopper 6.1.x. Documentation for other versions of JIRA Agile is available too.
GreenHopper is now called JIRA Agile. Learn more.
A Control Chart helps you identify whether data from the current sprint can be used to determine future performance. The less variance in the cycle time of an issue, the higher the confidence in using the mean (or median) as an indication of future performance.