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Dewey Decimal Classification

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Dewey Decimal Classification (DDC) is internationally the most widely used universal classification system. It was developed by Melvil Dewey in 1873 and published for the first time in 1876. Despite its Anglo-American background and its history spanning more than 120 years, it responds flexibly to scientific change and globalisation. Maintenance and licensing issues are handled by the OCLC (Online Computer Library Center). Various editions of the DDC have been translated into more than 30 languages. More than 200,000 libraries in over 135 countries worldwide use DDC, more than 60 of these countries use DDC in their national bibliographies. Further information

The German edition is the first translation of the 22nd edition of the DDC which was issued in the USA in 2003. It was created between 2002 and 2005 by the German National Library in collaboration with Fachhochschule Köln (today Technical University of Cologne) as part of the DDC Deutsch project funded by the German Research Foundation (DFG). The print edition of the "DDC 22 Deutsche Ausgabe" was published in October 2005 by K. G. Saur (today De Gruyter Saur). DDC Deutsch has been available to users in two new Web applications since the end of 2012: firstly as WebDewey Deutsch, the successor of MelvilClass, and as the WebDewey Search browsing tool. The web applications have now been updated in line with the 23rd edition of the DDC; the classification is being continually updated.

DDC Deutsch is used for subject cataloguing in the Deutschen Nationalbibliografie.

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