The Semantic Web

In Feb 2004, The World Wide Web Consortium released the Resource Description Framework (RDF) and the OWL Web Ontology Language (OWL) as W3C Recommendations. RDF is used to represent information and to exchange knowledge in the Web. OWL is used to publish and share sets of terms called ontologies, supporting advanced Web search, software agents and knowledge management. (http://www.w3.org/2001/sw/)

Resource Description Framework (RDF)

• Primer
• Concepts
• Syntax
• Semantics
• Vocabulary
• Test Cases

Web Ontology Language (OWL)

• This OWL Overview gives a simple introduction to OWL by providing a language feature listing with very brief feature descriptions;
• The OWL Guide demonstrates the use of the OWL language by providing an extended example. It also provides a glossary of the terminology used in these documents;
• The OWL Reference gives a systematic and compact (but still informally stated) description of all the modelling primitives of OWL;
• The OWL Semantics and Abstract Syntax document is the final and formally stated normative definition of the language;
• The OWL Web Ontology Language Test Cases document contains a large set of test cases for the language;
• The OWL Use Cases and Requirements document contains a set of use cases for a web ontology language and compiles a set of requirements for OWL.