RDF - Resource Description Framework

http://www.w3.org/TR/REC-rdf-syntax/

The Resource Description Framework (RDF) is a general-purpose language for representing information in the Web.

RDF is based on the idea of identifying things using Web identifiers (called Uniform Resource Identifiers, or URIs), and describing resources in terms of simple properties and property values. This enables RDF to represent simple statements about resources as a graph of nodes and arcs representing the resources, and their properties and values. To make this discussion somewhat more concrete as soon as possible, the group of statements "there is a Person identified by http://www.w3.org/People/EM/contact#me, whose name is Eric Miller, whose email address is em@w3.org, and whose title is Dr."

  
    Eric Miller
    
    Dr.