Creating trace links to absolute occurrences

You can create trace links between requirements and product structure objects. The product structure object can be a regular structure line, or you can store the trace link on an absolute occurrence. An absolute occurrence is an occurrence that contains additional information that is only relevant in the context of another structure line higher in the structure. Absolute occurrences are created by setting a higher level line as the context of an edit and adding information specific to this relationship. If you create a trace link on an absolute occurrence, this trace link exists in all structures containing both the context line and the trace link object in the same hierarchical relationship. If multiple revisions of the structure containing the related structures exist, the trace link exists in all the revisions. If you delete the trace link from one revision, it is deleted from all revisions. You can also create trace links between objects in Structure Manager and objects in other structure applications, for example, Multi-Structure Manager.