The CEN workshop on Electronic Invoicing has produced a draft CWA on Addressing and Routing. Its recommendations include the use of meta-identification schemes and an addressing directory infrastructure. It states: 

The OASIS ebCore Party Id Type Technical Specification implements the recommendations on federation of identification schemes, provides registered URN namespaces for ISO/IEC 6523 and other relevant meta-identification schemes. It also gives examples how these URN-based meta-identification schemes can be applied in XML-based protocols, e.g. ebXML messaging. However, these Uniform Resource Names can also be used in protocols which are not based upon XML, e.g. in AS2. Therefore, the OASIS ebCore Party Id Type Technical Specification fulfils all requirements to a meta-identifier scheme.

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