We use Pivotal Tracker to manage our feature backlog and the day-to-day activities of tracking a feature from estimation through delivery and acceptance. However, we find it easy to lose the big picture in the detail-oriented view Tracker provides.
Story Mapper uses your project data from Tracker to provide a higher level view geared toward release and milestone planning. This view is based on Jeff Patton’s story mapping techniques and provides the ability to see how the different components of your project will evolve across successive milestone.
All you need in order to use Story Mapper is a Tracker project with a backlog of stories and a subset of labels that represent user activities or components of your system. If you have a large project and have not been using labels in this way, you may have some work to do in Story Mapper before you have a story map that makes sense.