This could be part of the W3C Reference Library . WWW browser support for URNs. The current WWW clients need to support URNs in HTML documents. They should also provide mechanisms for the user to specify preferences on the types, formats, and locations of resources that they would like to be automatically retrieved. URC management software.
Extensive software needs to be developed to support the management of document metadata.
This will enable flexible metadata sets to be supported and also direct interaction with the URN resolvers. Clearly work on different metadata sets needs to undertaken to support a wide range of resource types. In particular, administrative metadata should be investigated. URN interoperability experiments. With many different protocols available and useful for URN resolvers, a standard interoperability testbed should be developed and supported.