title: What are Epics in regard of features and backlog items in Team Foundation?
body: <p>From <a href="https://stackoverflow.com/questions/16698363/difference-between-product-backlog-item-and-feature-in-team-foundation-work-item/19848968#19848968">this link</a> I assert that a feature is a set of backlog items, but what is an epic supposed to be?</p>