Library classification: Difference between revisions

Revision as of 05:11, 27 September 2023

Revision as of 04:10, 16 October 2023

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In terms of functionality, classification systems are often described as:

; [[Enumeration|Enumerative]]: Subject headings are listed alphabetically, with numbers assigned to each heading in alphabetical order.

; [[Hierarchy|Hierarchical]]: Subjects are divided hierarchically, from most general to most specific.

; [[Faceted classification|Faceted]]/analytico-synthetic: Subjects are divided into mutually exclusive orthogonal facets.

There are few completely enumerative systems or faceted systems; most systems are a blend but favouring one type or the other. The most common classification systems, LCC and DDC, are essentially enumerative, though with some hierarchical and faceted elements (more so for DDC), especially at the broadest and most general level. The first true faceted system was the [[colon classification]] of [[S. R. Ranganathan]].