Background

The Reuse Library Interoperability Group (RIG) [#!Moo92!#] formed in 1991. Terri Hobbs has chaired TC2 since its creation in July 1991. TC2 took the task of developing a general data model to support interoperability between many, widely divergent libraries. As part of this effort, TC2 first developed a subset data model for interoperability, the Basic Interoperability Data Model (BIDM) [#!RIG93a!#] that became a RIG proposed standard. TC2 also completed the draft of the UDM. The UDM includes the BIDM and expands upon it. In addition, TC2 has begun compiling a preliminary list of vocabulary terms for use in some of the UDM (and BIDM) attributes.