THE DEWEY DECIMAL CLASSIFICATION - OCLC

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Mitchell and Vizine-Goetz: The Dewey Decimal ClassificationINTRODUCTIONThe Dewey Decimal Classification (DDC) 1 system is a general knowledge organizationsystem that is continuously revised to keep pace with knowledge. The DDC is usedaround the world in 138 countries; over sixty of these countries also use Dewey toorganize their national bibliographies. Over the lifetime of the system, the DDC has beentranslated into more than thirty languages.The system has value because of its well-defined categories, well-developed hierarchies,rich network of relationships among topics, worldwide use, and language-independentrepresentation of concepts. The existence of interoperable translations, mappings to othersubject schemes, and the large amount of categorized content already associated with thesystem also contribute to Dewey’s value proposition.BASIC DESIGNSTRUCTURE AND NOTATIONThe DDC structures knowledge by disciplines or fields of study in a general-to-specificarrangement in well-developed hierarchies. At the top level, the DDC includes ten mainclasses:000 Computer science, information & general works100 Philosophy & psychologyhttp://www.oclc.org/research/publications/library/2009/mitchell-dvg-elis.pdf Page 2 of 36.
Mitchell and Vizine-Goetz: The Dewey Decimal Classification200 Religion300 Social sciences400 Language500 Science600 Technology700 Arts & recreation800 Literature900 History & geographyEach main class is divided into ten divisions, and each division is divided into tensections (some numbers in the divisions and sections have not been used—these aremarked as “Unassigned”):500 Science510 Mathematics510 Mathematics511 General principles of mathematics512 Algebra513 Arithmetic514 Topology515 Analysis516 Geometryhttp://www.oclc.org/research/publications/library/2009/mitchell-dvg-elis.pdf Page 3 of 36.
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THE DEWEY DECIMAL CLASSIFICATION - OCLC

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