Edit a relationship to change any of the properties or delete a relationship. If you edit a relationship and change the model, class, or parent-child relationships, Metadata Manager does not remove object-level relationships. The object-level relationships that you create use the updated properties.
For example, you edit the relationship for the AccessTableColumn class and remove the OracleColumn class from the relationship. Existing object-level relationships in the metadata catalog do not change, but you cannot create additional object-level relationships from AccessTableColumn objects to the OracleColumn metadata objects.
If you remove a relationship, Metadata Manager does not remove object-level relationships.
To edit a relationship:
On the Model tab, select a class.
In the Model navigator or the Content panel, click Actions > Open.
Metadata Manager opens a tab for the class.
Select Relationships.
Edit the relationship properties.
Click the Save icon.
Optionally, select the relationship and click Actions > Delete Relationship.