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Universal Decimal Classification
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bibliographic and library classification system
~16 min read
Encyclopedic overview
Universal decimal classification used at the library of the maison Losseau
The Universal Decimal Classification (UDC) is a bibliographic and library classification representing the systematic arrangement of all branches of human knowledge organized as a coherent system in which knowledge fields are related and inter-linked. The UDC is an analytico-synthetic and faceted classification system featuring detailed vocabulary and syntax that enables powerful content indexing and information retrieval in large collections. Since 1991, the UDC has been owned and managed by the UDC Consortium, a non-profit international association of publishers with headquarters in The Hague, Netherlands.
Excerpted from Wikipedia’s “Universal Decimal Classification” article, available under the CC BY-SA 4.0 licence.