What does the Ontology Directory do?
The Ontology Directory provides the meta-level information about which ontologies are available to the JOBC driver. By default, the ontology directory must contain the references to the top-level definitions of the supported XML-based ontology languages. For each ontology source, the directory will need to store the URI, but it may additionally store information about the contents of the ontology source in order to aid in query optimization. In addition, the Ontology Directory may contain deployment information that gives additional sources of ontology information.
