Backlog management

Product owners, project managers, release planners, and group managers can view, manage, and plan all their backlog at one location. They can also move stories between backlogs, and can rank stories by importance within a backlog.

Product Backlog
The list of stories in a product is referred to as the product backlog. The product owners maintain product backlog and they continuous groom their backlogs by adding stories, prioritizing and estimating them.
Release Backlog
The product owners select the prioritized stories from the product backlog that should be completed in a given release. The set of stories that to be completed in a release is termed as release backlog.
Group Backlog
The list of stories assigned to an assignment group is referred to as the group backlog. The group backlog is used during sprint planning.
Sprint Backlog
The scrum master and group members define their sprint schedule. Then along with product owner, they select stories from the group backlog that should be completed in each sprint. The stories to be completed in a sprint is termed as sprint backlog. The sprint backlog is created either when the sprint is created or in the sprint planning board.
Project Backlog
Product owners can select the prioritized stories and assign them to one or more projects. The stories assigned to a project are termed as project backlog.
Enhancement Requests and Defects
Users with a special, non-scrum role can create enhancement requests or defects within the Agile Development application. A scrum product owner reviews these requests and decides whether to create one or more user stories.