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OWL 2 Web Ontology Language

Ontology language with explicitly defined semantics and profiles.

Identity and normative owner

Record: owl2; record authority: Modeling. Normative owner of subject: World Wide Web Consortium (W3C). Resource reference: https://www.w3.org/TR/owl2-overview/ Registration is for discovery, not adoption, endorsement, or transfer of normative ownership.

Editions

  • 2, second edition: W3C Recommendation. Named edition for identification, not a claim that it is the newest edition.

Distributions and references

  • owl2-documentation — documentation, text/html, en. Rights are assessed per distribution in the record. Unassessed rights do not imply permission to redistribute.

Verification scope

  • metadata-observed (2026-09-17): Landing-page/specification metadata only; no distribution bytes, legal clearance, current-latest guarantee, or implementation conformance was verified.

Cautions

  • Distinguish class/property equivalence from identity of individuals. Do not infer agreement by another authority from a local OWL assertion.