User Data Convergence (UDC) presents a layered architecture where user data is accessible at a logically unique repository called User Data Repository (UDR). One or more dataless applications access the user data that is stored in the UDR. In this context, applications can be front ends, for example an HSS-FE or an HLR-FE, or application servers. In order to support UDC, a Common Baseline Information Model is defined in this TS.
This TS specifies a Common Baseline Information Model for UDC. This information model denotes an abstract, formal representation of entity types that are common to many applications using the UDR. CBIM describes the basic IOCs of UDC, their properties and their relationships. Detailed requirements for the specification of this Common Baseline Information Model are given in TR 22.985
and TS 22.101
From the Common Baseline Information Model specialized information models and data models can be derived. All these derived models are out of the scope of this TS.