Epics have just been introduced in Atlassian's GreenHopper 6.1 agile management tool. It's a new feature for Scrum teams that enables them to organise a growing backlog. Epics represent big feature areas that the team will break down into stories and complete over a number of sprints.
For full details read the release blog:
Atlassian GreenHopper 6.1 Introduces Epics
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