Colon classification
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Colon classification (CC) is a system of library classification developed by Shiyali Ramamrita Ranganathan. It was an early faceted (or analytico-synthetic) classification. The first edition was published in 1933.Since then, six more editions have been published. It is especially used in libraries in India.
Its name "colon classification" comes from the use of colons to separate facets in class numbers. However, many other classification schemes, some of which are completely unrelated, also use colons and other punctuation in various functions. Originally, CC used only the colon as a separator, but the second revision onwards use four other punctuation symbols to identify each facet type.
In CC, facets describe "personality" (the most specific subject), matter, energy, space, and time (PMEST). These facets are generally associated with every item in a library, and so form a reasonably universal sorting system.
See also
- Bliss bibliographic classification
- Faceted classification
- Subject (documents)
- Universal Decimal Classification
