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In information retrieval, an index term (also known as subject term, subject heading, descriptor, or keyword) is a term that captures the essence of the topic of a document. Index terms make up a controlled vocabulary for use in bibliographic records .
Controlled vocabulary terms can accurately describe what a given document is actually about, even if the terms themselves do not occur within the document's text. Well known subject heading systems include the Library of Congress system, Medical Subject Headings (MeSH) created by the United States National Library of Medicine, and Sears.
The compilation, Library of Congress Subject Headings in Jewish Studies, does not have a separate list of generally applicable subdivisions or geographic headings, but the introduction notes that it does include "the generally applicable subdivisions for Jews, Judaism, Hebrew language, and Israel ' The compiler goes on to explain that "some of ...
In library and information science, cataloging or cataloguing is the process of creating metadata representing information resources, such as books, sound recordings, moving images, etc. Cataloging provides information such as author's names, titles, and subject terms that describe resources, typically through the creation of bibliographic records. [1]
Faceted Application of Subject Terminology (FAST) is a general use controlled vocabulary based on the Library of Congress Subject Headings (LCSH). [1] FAST is developed as a part of WorldCat by OCLC , Inc., with the goal of making subject cataloging less costly and easier to implement in online contexts.
This was a widespread form of card catalog in North American libraries prior to the introduction of the computer-based catalog. [20] Keyword catalog: a subject catalog, sorted alphabetically according to some system of keywords. Mixed alphabetic catalog forms: sometimes, one finds a mixed author / title, or an author / title / keyword catalog.
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The library professional who engages in the process of cataloging and classifying library materials is called a cataloger or catalog librarian. Library classification systems are one of the two tools used to facilitate subject access. The other consists of alphabetical indexing languages such as Thesauri and Subject Headings systems.