You can use the Links Hierarchy plug-in for Jira 5+ or above. It builds virtual links for Epics and subtasks in the fly and displays those hierarchies on an interactive HTML 5 graph.
[UPDATE]: The plugin was fully re-engineered in the 3.0 version dropping Flash support and replacing it by awesome HTML 5 graphs furthermore a lot of other improvements (new filters, performance, new HTML 5 matrix view,...)
You can group stories by Component
or you can use Epic (or invent your own) custom field
If you really need a separate issue of Epic type you may consider this plugin https://marketplace.atlassian.com/plugins/au.com.efficiencysolutions.jira.plugins.hierarchy
The latest Greenhopper patch includes the Epic Report, showing status of all epic-related from Report view. I think it still does not show subtasks. https://confluence.atlassian.com/display/GH/Viewing+the+Epic+Report
Badges are a great way to show off community activity, whether you’re a newbie or a Champion.Learn more
As part of the Bitbucket product team I'm always interested in better understanding what kind of impact the use of our tools have on the way you work. In a recent study we conducted of software devel...
Connect with like-minded Atlassian users at free events near you!Find a group
Connect with like-minded Atlassian users at free events near you!
Unfortunately there are no AUG chapters near you at the moment.Start an AUG
You're one step closer to meeting fellow Atlassian users at your local meet up. Learn more about AUGs