Controlled vocabulary terms used to describe topics consistently in catalogs are known as?

• A. Subject Headings
• B. Truncation
• C. Search Strategy
• D. Spine Label

Answer: (A)

In library catalogs, topics are described using standardized terms called subject headings. These controlled vocabulary terms are chosen from a predefined vocabulary so that every item about the same topic uses the same label, which makes it easy to find all related materials regardless of how different authors might word their descriptions. This consistency across records improves precision and recall when searching the catalog. The terms often come from established vocabularies like the Library of Congress Subject Headings, providing uniformity across the collection. Other options refer to ways of searching (truncation, which broadens a search) or to the physical label on a book (spine label) rather than the standardized topical descriptor used throughout the catalog.