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/standards/agrovoc/functionalities/search
Maintained by: United Nations Food and Agriculture Organization (FAO)
Label: agrovoc

Title: Art & Architecture Thesaurus
URL: www.getty.edu/research/conducting_research/vocabularies/aat/
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://211canada.typepad.com/informcanada/taxonomy/index.html
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: www.cbif.gc.ca/pls/itisca/taxaget?p_ifx=cbif&p_lang=
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://168.96.200.17/ar/oecd-macroth/
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

Lists

Software for building and editing thesauri. Willpower Information
(accessed August 9, 2011)

Taxonomy Warehouse, from Dow Jones
(accessed August 9, 2011)

Thesaurus management software. American Society of Indexers
(accessed August 9, 2011)

Products

Note: Even though these sites are only presented in English, many of the products support multilingual vocabularies and diacritics.

Autonomy
(accessed August 9, 2011)

Cogniva
(accessed August 9, 2011)

Data Harmony
(accessed August 9, 2011)

Interwoven, MetaTagger
(accessed August 9, 2011)

LucidMedia ClickSense
(accessed August 9, 2011)

MultiTes
(accessed August 9, 2011)

Synaptica
(accessed August 9, 2011)

Visual Thesaurus (ThinkMap)
(accessed August 9, 2011)

Wordmap
(accessed August 9, 2011)

Standards for Controlled Vocabulary Development

Government of Canada

Treasury Board. Standard on Metadata
(accessed August 9, 2011)

Other

International Organization for Standardization (ISO). Documentation - Guidelines for the establishment and development of monolingual thesauri. [ISO 2788:1986]
(accessed August 9, 2011)

International Organization for Standardization (ISO). Documentation - Guidelines for the establishment and development of multilingual thesauri. [ISO 5964:1985]
(accessed August 9, 2011)

International Organization for Standardization (ISO). Information technology - SGML applications - Topic maps [ISO 13250:2003]
(accessed August 9, 2011)

National Information Standards Organization (NISO). Guidelines for the Construction, Format, and Management of Monolingual Controlled Vocabularies. [ANSI/NISO Z39.19-2005]
(accessed August 9, 2011)

National Information Standards Organization (NISO). Guidelines for Indexes and Related Information Retrieval Devices. [NISO TR-02-1997]
(accessed August 9, 2011)

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