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Universal Decimal Classification (UDC)

Classification system whose full database and smaller public subsets require distinct descriptions.

Identity and normative owner

Record: udc; record authority: Modeling. Normative owner of subject: UDC Consortium. Resource reference: https://udcc.org/ Registration is for discovery, not adoption, endorsement, or transfer of normative ownership.

Editions

No specific edition is pinned by this record.

Distributions and references

  • udc-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): Primary-source page metadata observed; no distribution bytes, legal clearance, current-latest guarantee, or implementation conformance was verified.

Cautions

  • Do not copy a licensed full classification database into this repository.
  • A publicly accessible subset does not establish the full system's membership, edition, or licensing.