A relationship is an association between two objects. In every Microsoft® Repository relationship, one object participates as the origin and one object participates as the destination. The terms origin and destination refer to the relative roles of the two objects.
For a given type of relationship, the assignment of one particular role as the origin and the other role as the destination is arbitrary; the origin role, however, is usually assigned to the object that acts or operates on the other object. For example, in a relationship of the type person-manages-project, person is the origin, and project is the destination.
You can use relationships to navigate through Repository's contents. With each relationship, you can retrieve either of the two Repository objects that the relationship associates.