Schemas 
All objects (instance classes) that are created in an SAP liveCache database are assigned to a liveCache schema. A liveCache schema is a combination of classes for a namespace in the OMS intermediate layer.
The Performance user menu of the DBA Cockpit contains, among other things, a display of the liveCache schemas.
Procedure
Open the DBA Cockpit (transaction DBACOCKPIT) and choose 
Performance 
Schemas 
.
Result
You can specify additional details about the size of the liveCache schema in relationships to the application (plan version).