Revision of the RDF model?

• Some restrictions in RDF may be unnecessary (bNodes as predicates, literals as subject, …)

• Issue of “named graph”: possibility to give a URI to a set of triplets and make statements on those

• Syntax issues in RDF/XML (eg, QNames in properties)

• Add a time tag to statements?

• Internationalization issues with literals (how do I set “bidi” writing?)

• …