In the liveCache basis layer the terms liveCache schema, class GUID, class name or container number are not used. Instead, the liveCache basis layer assigns a unique number, the class ID, to each class of the OMS intermediate layer. This number is sequential. If a class is deleted in the liveCache database, the corresponding class ID is also deleted. This can then be assigned to a new class.

In the liveCache basis layer, only the classes and class container terms are used.