Documentation for JIRA 4.2. Documentation for other versions of JIRA is available too.
The 'Pie Chart' gadget displays issues returned from a specified project or issue filter, grouped by a specified field. For example, an issue filter can be created to retrieve all open issues for a particular version of a particular project. The 'Pie Chart' gadget can then be used to display these issues grouped by a specified field (e.g. Assignee).
The 'Pie Chart' gadget will appear as follows on the dashboard:
Click any section of the chart to view the matching issues.
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