Ontology Web » resource http://www.ontologyweb.com Become a triple in the web! Sun, 31 Jul 2011 13:10:12 +0000 en hourly 1 http://wordpress.org/?v=3.2.1 RDF stands for Resource Description Framework http://www.ontologyweb.com/2009/12/rdf-stands-for-resource-description-framework/ http://www.ontologyweb.com/2009/12/rdf-stands-for-resource-description-framework/#comments Tue, 08 Dec 2009 08:17:57 +0000 Working Ontologist http://www.ontologyweb.com/?p=173 RDF is short for Resource Description Framework. RDF is the language for describing resources and contents in the semantic web. In the semantic web RDF is used to describe resources on the web. Resources are addressed by a unique URI. A URI looks like a normal Internet URL.

Look at the following fragment of a RDF file:

<?xml version="1.0"?>
<rdf:RDF
    xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
    xmlns:owl="http://www.w3.org/2002/07/owl#"
    xmlns:xsd="http://www.w3.org/2001/XMLSchema#"
    xmlns="http://example.org/pets#"
    xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"
  xml:base="http://example.org/pets">
  <owl:Class rdf:ID="Goldfish">
    <rdfs:subClassOf>
      <owl:Class rdf:ID="Pet"/>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="Cat">
    <rdfs:subClassOf>
      <owl:Class rdf:about="#Pet"/>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="Dog">
    <rdfs:subClassOf>
      <owl:Class rdf:about="#Pet"/>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:ID="Elephant">
    <rdfs:subClassOf>
      <owl:Class rdf:ID="Wild"/>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:about="#Pet">
    <rdfs:subClassOf>
      <owl:Class rdf:ID="Animal"/>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:about="#Wild">
    <rdfs:subClassOf rdf:resource="#Animal"/>
  </owl:Class>
  <owl:Class rdf:ID="Leopard">
    <rdfs:subClassOf rdf:resource="#Wild"/>
  </owl:Class>
  <owl:Class rdf:ID="Tiger">
    <rdfs:subClassOf rdf:resource="#Wild"/>
  </owl:Class>
</rdf:RDF>

]]> http://www.ontologyweb.com/2009/12/rdf-stands-for-resource-description-framework/feed/ 0