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12. Ontologies: RDF Business Models > 12.6. Bits of Knowledge: More Complex OWL...

Bits of Knowledge: More Complex OWL Constructs

The example in the last section that allowed us to define a more complex data type for a specific property begins to demonstrate the divergence between RDFS and OWL—this ability to attach more nuances of meaning to the data being modeled, beyond nuances defined in RDF. Rightfully so—the relational data model provides the structure necessary to build generic data types that can manage all data; complex business models such as SAP and PeopleSoft use the relational model as a base for more complex models representing more specific business models. The two layers of relational data are complementary rather than competitive, just as the two layers of RDF/RDFS and OWL are complimentary rather....


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