Dependency Relationships

The dependency_data field on a relationship for an entity is used mainly when two entities are related, and the second (or Left) entity has a relationship which is important for the first (or Right) entity to know.

Example: Entity B and Entity C are related. We want to relate another Entity A with B, but we want A to also know about the B-C relationship, so we add C as a dependency for the A-B relationship.