RDF CCK module
The RDF CCK module allows site administrators to map each content type, node title, node body and CCK field to an RDF term (class or property).
The RDF CCK module – available at the official Drupal site http://drupal.org/project/rdfcck – allows to link existing and newly deployed
Drupal sites to the Web of Data by a few clicks. It auto-exports the content model of a Drupal site to an ontology that is published following common best practices for ontology publication and enables the exposure of Drupal site content as RDFa.