The W3C OWL 2 Web Ontology Language (OWL) is a Semantic Web language designed to represent rich and complex knowledge about things, groups of things, and relations between things. - OWL 2 Web Ontology Language Primer

Documentation

Current documentation of OWL, from the W3C OWL Working Group, may be referenced onto the official OWL 2 Web Ontology Language Document Overview. The following may serve as a cribbed outline for the said documentation, but is not intended to serve as a full substitute for the W3C's document overview to the same.

• OWL 2 Web Ontology Language Primer
• OWL 2 Abstract Structure
  • OWL 2 Web Ontology Language Structural Specification and Functional-Style Syntax
  • OWL 2 Semantics
    • OWL 2 Web Ontology Language Direct Semantics
    • OWL 2 Web Ontology Language RDF-Based Semantics
• OWL 2 Expression Syntaxes
  • OWL 2 Web Ontology Language Structural Specification and Functional-Style Syntax (op cit.)
  • OWL 2 Web Ontology Language Profiles
  • RDF OWL
    • OWL 2 Web Ontology Language Mapping to RDF Graphs
    • OWL 2 Web Ontology Language RDF-Based Semantics (op cit.)
  • OWL 2 Web Ontology Language Quick Reference Guide
  • OWL 2 Web Ontology Language XML Serialization
  • OWL 2 Web Ontology Language Manchester Syntax
• OWL 2 Extensions
  • OWL 2 Web Ontology Language Data Range Extension: Linear Equations
• OWL 2 Web Ontology Language Conformance
• OWL 2 Web Ontology Language New Features and Rationale

Implementations

RDF implementations would support representation of OWL ontologies via RDF mapping.