You can create relationship fields to link items for reference purposes, such as linking duplicate items, or linking features and their defects. You can also create relationship fields to link items for the purposes of tracking and monitoring. For example, you can create a Sub Features relationship field on a Feature item type to link a master feature to a group of secondary features, which in turn can have relationship fields that link to defect and documentation items. Users can then track the overall development progress for a master feature by reviewing its hierarchy of related items using the Relationships view. For more information on the Relationships view, see the User documentation.

Every relationship consists of a pair of relationship fields: one for the forward relationship and one for the backward relationship. Forward relationships are relationships where the related item is a child of the original item. Backward relationships are relationships where the related item is a parent of the original item. For example, you could create a forward relationship field named Sub Features to link master features to their sub features, and a backward relationship field named Master Feature to link sub features to their master feature. Users can create a relationship from either the child or the parent, and the corresponding field in the related item is updated automatically.