You can configure hierarchies in the MDM Hub Console. Hierarchies show the relationship between individual records, whereas the datamodel show relationships between base objects.
For example, you can create a hierarchy to track which employees belong to each department within an organization. You could also create a hierarchies of products within various product groups.
To configure a hierarchy, you need to first create an entity base object. etc.
You must have a Hierarchy Manager license to configure hierarchies.