Colon classification
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Colon classification (CC) is a system of library classification developed by S. R. Ranganathan. It was the first ever faceted (or analytico-synthetic) classification. 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. They should not be confused with Colon classification.
As an example, the subject "research in the cure of tuberculosis of lungs by x-ray conducted in India in 1950" results in a call number
- L,45;421:6;253:f.44'N5
The components of this call number represent
- Medicine,Lungs;Tuberculosis:Treatment;X-ray:Research.India'1950
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Organization
The Colon Classification uses 42 main classes that are combined with other letters, numbers and marks in a manner reminiscent of the Library of Congress Classification to sort a publication.
Facets
CC uses five primary categories, or facets to further specify the sorting of a publication collectively called 'PMEST'.
- , personality
- ; matter or property
- : energy
- . space
- ' time
Classes
The following are the main classes of CC, with some subclasses, the main method used to sort the subclass using the PMEST scheme and examples showing application of PMEST.
- A Generalia
- 1 Universe of Knowledge
- 2 Library Science
- 3 Book Science
- 4 Journalism
- B Mathematics
- B1 Arithmetic
- B13 Theory of Numbers
- B2 Algebra
- B23 Algebraic Equations
- B25 Higher Algebra
- B3 Analysis
- B33 Differential Equations [equation] , [degree] , [order] : [problem]
- B331,1,2:1 Numerical solutions (:1) of ordered (331) linear (,1) second order (,2) differential equations
- B37 Real Variables
- B38 Complex Variables
- B33 Differential Equations [equation] , [degree] , [order] : [problem]
- B4 Other Methods
- B6 Geometry
- B7 Mechanics
- B8 Physico-Mathematics
- B9 Astronomical Mathematics
- B1 Arithmetic
- C Physics
- C1 Fundamentals of Physics
- C2 Properties of Matter
- C3 Sound
- C4 Heat
- C5 Light and Radiation
- C6 Electricity
- C7 Magnetism
- C8 Cosmic Hypothesis
- D Engineering
- E Chemistry
- F Technology
- G Biology
- H Geology
- HX Mining
- I Botany
- J Agriculture
- L Medicine
- LZ3 Pharmacology
- LZ5 Pharmacopoeia
- M Useful arts
- Ð Spiritual experience and mysticism
- N Fine arts
- NA Architecture [style] , [utility] , [part] : [technique]
- ND Sculpture [style] , [figure] ; [material] : [technique]
- NN Engraving
- NQ Painting [style] , [figure] ; [material] : [technique]
- NR Music [style] , [music] ; [instrument] : [technique]
- O Literature
- P Linguistics
- Q Religion
- R Philosophy
- S Psychology
- T Education
- U Geography
- V History
- W Political science
- X Economics
- Y Sociology
- Z Law
See also
de:Colon-Klassifikation it:Classificazione Colon