Technology

Health Canada Controlled Subject Vocabulary

"Le Vocabulaire contrôlé des sujets de Santé Canada fût dévelopé pour fournir des points d'accès par sujet aux ressources informationelles de Santé Canada. Le vocabulaire contrôlé est bilingue, structuré, et il fournit l'extraction de données pour les éditeurs, et les usagers des documents. Son contenu est publié sur le site Web de Santé Canada. Le vocabulaire contrôlé est un ensemble de termes préférentiels qui sont utilisés pour cataloguer les documents.

"The Health Canada Controlled Subject Vocabulary was developed to provide subject access to Health Canada's information resources. The Controlled Vocabulary is a bilingual, structured, indexing and information retrieval tool for both publishers and users of the documents and information published on the Health Canada Web site. The terms listed in the controlled vocabulary are used in the Dublin Core metadata record for the SUBJECT element, where appropriate and feasible, in order to provide accurate and comprehensive results when searching the Health Canada Web site.

International Classification of Headache Disorders

"This classification is hierarchical and you must decide how detailed you want to make your diagnosis. This can range from the first-digit level to the fourth. First one gets a rough idea about which group the patient belongs to. Is it for example 1. Migraine or 2. Tension-type headache or 3. Cluster headache and other trigeminal autonomic cephalalgias? Then one obtains information allowing a more detailed diagnosis. The desired detail depends on the purpose.

Medical Subject Headings

"MeSH is the National Library of Medicine's controlled vocabulary thesaurus. It consists of sets of terms naming descriptors in a hierarchical structure that permits searching at various levels of specificity. MeSH descriptors are arranged in both an alphabetic and a hierarchical structure. At the most general level of the hierarchical structure are very broad headings such as 'Anatomy' or 'Mental Disorders'. More specific headings are found at more narrow levels of the twelve-level hierarchy, such as 'Ankle' and 'Conduct Disorder'. There are 26,142 descriptors in 2011 MeSH.

NASA Thesaurus

"The Hierarchical Listing With Definitions contains all subject terms and USE cross references currently approved for use, and displays the full hierarchical structure for each term along with a definition when available. In addition, the listing has been developed to serve as an orthographic authority for upper/lowercase forms of all terms and cross references. The term-added date, displayed for all terms added after April 1988, is also given.

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