Something we maybe can leverage for UCD

The W3C RDF Data Access Working Group has released an initial Working Draft specification for RDF Data Access Use Cases and Requirements which "outlines use cases for RDF query languages and access protocols and their requirements, examining their design objectives." The Working Draft has been produced as part of the W3C Semantic Web Activity.

Link at:
http://xml.coverpages.org/ni2004-06-07-a.html