Controlled Vocabularies

Many controlled vocabularies are used to describe information resources in the Government of Canada. Describing Web information resources using controlled terminology improves the ability of users to find the information they need when search engines are metadata-enabled.

Library and Archives Canada is actively engaged in the development, management and use of controlled vocabularies for the description of Government of Canada Web resources. This involvement includes:

Government of Canada Controlled Vocabulary Registry

As prescribed in Treasury Board's Standard on Metadata, Library and Archives Canada is responsible for the registration of controlled vocabularies used in the Government of Canada for Web resource discovery.

For more information about implementing a controlled vocabulary on a Government of Canada website, consult our Frequently Asked Questions.

Controlled Vocabulary Registry

Canadian Government-maintained Controlled Vocabularies

Externally-maintained Controlled Vocabularies

Title: Agrovoc, Multilingual Agricultural Thesaurus
URL: http://aims.fao.org/vest-registry/vocabularies/agrovoc-multilingual-agricultural-thesaurus
Maintained by: United Nations Food and Agriculture Organization (FAO)
Label: agrovoc

Title: Art & Architecture Thesaurus
URL: http://www.getty.edu/research/tools/vocabularies/aat/index.html
Maintained by: Getty Research Institute
Label: AAT

Title: ASFA Thesaurus
URL: www4.fao.org/asfa/asfa.htm
Maintained by: Aquatic Sciences and Fisheries Information System (ASFIS)
Label: ASFAT

Title: Canadian Taxonomy of Human Services
URL: http://www.informcanada.ca/taxonomy/
Maintained by: 211 of LA County, in collaboration with InformCanada Federation
Label: CTHS

Title: Dewey Decimal Classification (DDC)
URL: www.oclc.org/dewey/about/
Maintained by: OCLC
Label: DDC

Title: Global Change Master Directory (GCMD) Science Keywords
URL: http://gcmd.nasa.gov/Resources/valids/gcmd_parameters.html
Maintained by: NASA, Goddard Space Flight Center
Label: GCMD

Title: Integrated Taxonomic Information System (ITIS): Taxon based biological information system
URL: http://www.cbif.gc.ca/eng/integrated-taxonomic-information-system-itis/?id=1381347793621
Maintained by: Canadian Biodiversity Information Facility
Label: ITIS

Title: Library of Congress Classification (LCC Outline)
URL: www.loc.gov/catdir/cpso/lcco/lcco.html
Maintained by: Library of Congress
Label: LCC

Title: Library of Congress Subject Headings (LCSH)
URL: http://id.loc.gov
Maintained by: United States. Library of Congress
Label: LCSH

Title: Medical Subject Headings
URL: www.nlm.nih.gov/mesh/
Maintained by: United States, National Library of Medicine
Label: MESH

Title: National Library of Medicine Classification
URL: http://wwwcf.nlm.nih.gov/class/
Maintained by: U.S. National Library of Medicine
Label: NLMC

Title: OECD Macrothesaurus - HTML Version
URL: http://bibliotecavirtual.clacso.org.ar/ar/oecd-macroth/en/index.htm
Maintained by: Organisation for Economic Cooperation and Development
Label: OECDMT

Title: Répertoire de vedettes-matière (RVM)
URL: https://rvmweb.bibl.ulaval.ca/en/
Maintained by: Université Laval
Label: RVM

Standards for Controlled Vocabulary Development

Government of Canada

Treasury Board. Standard on Metadata

Other

International Organization for Standardization (ISO). Documentation - Guidelines for the establishment and development of monolingual thesauri. [ISO 2788:1986]

International Organization for Standardization (ISO). Documentation - Guidelines for the establishment and development of multilingual thesauri. [ISO 5964:1985]

International Organization for Standardization (ISO). Information technology - SGML applications - Topic maps [ISO 13250:2003]

National Information Standards Organization (NISO). Guidelines for the Construction, Format, and Management of Monolingual Controlled Vocabularies. [ANSI/NISO Z39.19-2005]

National Information Standards Organization (NISO). Guidelines for Indexes and Related Information Retrieval Devices. [NISO TR-02-1997]

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