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Basic Technical IVT Commonly tested

Controlled Vocabulary

noun phrase

Pronunciation: /kənˈtroʊld vəˈkæbjəleri/

A standardized set of authorized terms used to describe and organize library resources consistently across a collection. Controlled vocabularies include subject headings, thesauri, and classification systems that ensure uniform indexing.

Plain English

An approved list of specific words and phrases used to label and organize library materials.

Etymology & History

Origin languageEnglish
Rootcontrolled (from Latin controllare) + vocabulary (from Medieval Latin vocabularium)
First recorded use1960
Usage frequencyCommon

Usage

"Our librarians standardized catalog descriptions using the Library of Congress Controlled Vocabulary."

Style guide notes: Capitalize specific controlled vocabulary names like Library of Congress Subject Headings.

Also known as

authorized vocabulary subject headings standardized terminology

Contrasted with

free tagging natural language indexing

Related Terms

Frequently Asked Questions

Why are Controlled Vocabularies important for library catalogs?

They ensure consistent indexing, improve searchability, and prevent confusion from synonyms.

What are common examples of Controlled Vocabularies?

Library of Congress Subject Headings, Medical Subject Headings, and Dewey Decimal Classification.

Why Test Candidates on This?

Essential for understanding cataloging standards and information organization principles.

Required skill level: Mid

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