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UDC Summary

Selected subset of Universal Decimal Classification, described separately from the full system.

Identity and normative owner

Record: udc-summary; record authority: Modeling. Normative owner of subject: UDC Consortium. Resource reference: https://udcsummary.info/ 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-summary-documentation — documentation, text/html, en. Rights are assessed per distribution in the record. Unassessed rights do not imply permission to redistribute.

Verification scope

  • reference-not-verified (not observed): Reference retained from the architecture inventory; this intake has not independently verified its current source content.
  • metadata-observed (2026-09-17): Upstream UDC Consortium page identifies and links the Summary; the Summary contents and current license were not verified.

Cautions

  • Keep subset coverage, edition, and applicable license distinct from the full UDC database.
  • The license at the current source was not verified during this intake; no open-license identifier is asserted.
  • Absence of a class from this subset cannot establish its absence from the complete classification.