Cost DateOfInformation Domain [Keyword] Language [Restrictions] SecurityClassification [TargetEnvironment] UniqueID [Version] [VersionDate] RIGObject Name IsComposedOf Element ElementType Media UniqueID Organization Address Email Fax Telephone Organization Address WasCreatedBy [Email] [Fax] [Telephone] Library ContactIs 1+ IsComposedOf 1+ 1+ 1+ 1+ IsLocatedIn IsMadeOf [ ] [ ] Figure 2: Basic Interoperability Data Model 13 a concrete syntax that can be transferred using a file transfer protocol such as FTP or HTTP. So far the RIG has defined two such bindings, one that maps the BIDM to an SGML Document Type Definition (DTD), and another that maps the BIDM to META and LINK tags in the header of an HTML document. These bindings have been implemented and tested by RIG members. A document containing the specifications for these bindings is currently in the IEEE standardization process. The SGML DTD for the RIG BIDM and the Asset Certification Framewo...