- is called
- RDF
- uses namespace
- http://www.w3.org/1999/02/22-rdf-syntax-ns# (usual prefix: rdf, r)
- http://www.w3.org/2000/01/rdf-schema# (usual prefix: rdfs)
RDF is a framework for semantic descriptions of resources that can be referenced by URI. It represents information about resources in form of a graph with directed labeled edges. Or told otherwise, as a set of triples which consist of a subject a predicate and an object. The point behind the whole thing is that computers can partially understand and process this information. This makes it possible for a search engine to answer a question as for example "Give me all Italian musicians from the 18th century". Answering such a question is not possible by simple text matching methods, as it involves a deeper understanding of the semantics. Indeed, RDF is the basic framework of the semantic web.
Howto Learn
Read the primer.
Specifications
RDF Concepts
http://www.w3.org/TR/rdf-concepts/
Title: RDF Concepts
has version http://www.w3.org/TR/2004/REC-rdf-concepts-20040210/
This is a W3C Recommendation;
Title: Resource Description Framework (RDF): Concepts and Abstract Syntax
Date: 2004-02-10
http://www.w3.org/2000/10/swap/pim/doc#versionOf: RDF Concepts
RDF Schema
http://www.w3.org/TR/rdf-schema
Title: RDF Schema
has version http://www.w3.org/TR/2004/REC-rdf-schema-20040210/
This is a W3C Recommendation;
Title: RDF Vocabulary Description Language 1.0: RDF Schema
Date: 2004-02-10
http://www.w3.org/2000/10/swap/pim/doc#versionOf: RDF Schema
Links
Redland RDF library
http://librdf.org/
Title: Redland RDF library
Description: A library written in C for handling and storing RDF. Bindings for many languages are available. Serializers and Parsers for various dialects are also available.
RDF Concepts
http://www.w3.org/TR/rdf-concepts/
Title: RDF Concepts
has version http://www.w3.org/TR/2004/REC-rdf-concepts-20040210/
This is a W3C Recommendation;
Title: Resource Description Framework (RDF): Concepts and Abstract Syntax
Date: 2004-02-10
http://www.w3.org/2000/10/swap/pim/doc#versionOf: RDF Concepts
Primer
http://www.w3.org/TR/rdf-primer/
Title: Primer
Description: A w3c recommendation which is an introduction to RDF, RDF/XML and RDFS. This is a really good reading for newcommers.
has version http://www.w3.org/TR/2004/REC-rdf-primer-20040210/
This is a W3C Recommendation;
Title: RDF Primer
Date: 2004-02-10
http://www.w3.org/2000/10/swap/pim/doc#versionOf: Primer
RDF Schema
http://www.w3.org/TR/rdf-schema
Title: RDF Schema
has version http://www.w3.org/TR/2004/REC-rdf-schema-20040210/
This is a W3C Recommendation;
Title: RDF Vocabulary Description Language 1.0: RDF Schema
Date: 2004-02-10
http://www.w3.org/2000/10/swap/pim/doc#versionOf: RDF Schema