15. Part Manufacturer RD Example rdf:type (green box) is OWL equiv of PLCS Classification_assignment (red box) of PLCS External_class.id = URI of the OWL class. ShipDesignRD schema = RD PLCS schema AP239 = Proxy ontology
16.
17. PLCS-Related Ontology Layers PLCS RD and Proxy Ontology SPARQL Rules for PLCS and/or DEX Business, domain, testing SPARQL Rules