Both objects in this relationship can be created without this relationship, but when the relationship is created, there can only be a single object at one end.
For example, document label: SPFDocRevisionLabel.
Use cases
-
The document revision does not need to have a label.
-
The document can only have one label.
Relationship configuration:
Optional - Min2=0
Only one - Max2=1
Existing object - no delete
Useful to have copy
No ownership