For example, a defect may require closure of another defect before it can be closed. There are several levels of artifact dependencies within Project Tracker:

• Blocking - Blocking artifacts prevent the artifact being blocked, from being resolved. The blocking artifact must be addressed before the blocked artifact can be resolved.
• Duplicating - Sometimes duplicate artifacts may be entered and need to be tracked separately. Marking an artifact as a duplicate allows users to track efforts on both artifacts. Duplicates may be in different projects or the same project.
• Non-blocking - Marking artifacts as non-blocking dependencies also allows users to simultaneously track efforts on two or more artifacts.
• Parent -Child - Artifacts can be grouped under a single tracking artifact to allow you to monitor the progress of a group of artifacts.

Note: In Project Tracker, all relationships are titular. The system does not enforce any behavior.