12.1.8. RDF Schema (RDFS)

RDF Schema (RDFS) is an extension of RDF.
Classes for RDF Schema and applications ¶

RDF describes resources by classes, attributes, and values.
In addition, RDF needs a way to define application-specific classes and properties. Application-specific classes and properties must be defined using an extension to RDF.
RDF Schema is such an extension.
RDF Schema (RDFS) ¶

Instead of providing actual application-specific classes and properties, RDF Schema provides a framework for describing application-specific classes and properties.
Classes in RDF Schema are very similar to classes in object-oriented programming languages. This allows resources to be defined as instances of the class and subclasses of the class.
RDFS instance ¶

The following example demonstrates some aspects of RDFS’s capabilities:



  


  
  


    In the above example, the resource “horse” is a subclass of the class “animal”. 
    An example of shorthand  ¶  
  Since a RDFS class is a RDF resource, we can abbreviate the above example by using rdfs:Class instead of rdf:Description and removing the rdf:type information: 
   



  


    okay!    
                    
                
                
                    
                        
                            
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                            12.1.8. RDF Schema (RDFS) 
                        
                    
                
            
        
        
            

    
        
            
                
                    
                        
                        
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