Preplanned List

A Preplanned list is an ordered list of product backlog items that are yet to be explicitly planned. Preplanning stories/epics is to obtain an early grouping of items for a future release.

Milestone

The milestone specifies a deadline. Themes, epics and stories can be linked to this milestone to indicate that they must meet the deadline.

Sprint

A Sprint is a time-box during which a “Done”, useable, and potentially releasable product increment is created.