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Abstract

This book is an extension and total revision of the author's earlier Guide to the use of UDC. The original was written in 1993 and in the intervening years much has happened with the classification. In particular, a much more rigorous approach has been undertaken in revision to ensure that the scheme is able to handle the requirements of a networked world. The book outlines the history and development of the Universal Decimal Classification, provides practical hints on its application and works through all the auxiliary and main tables highlighting aspects that need to be noted in applying the scheme. It also provides guidance on the use of the Master Reference File and discusses the ways in which the classification is used in the 21st century and its suitability as an aid to subject description in tagging metadata and consequently for application on the Internet. It is intended as a source for information about the scheme, for practical usage by classifiers in their daily work and as a guide to the student learning how to apply the classification. It is amply provided with examples to illustrate the many ways in which the scheme can be applied and will be a useful source for a wide range of information workers

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Abstract

Für die Änderungen gegenüber der 20th ed. vgl. den Artikel: Mitchell, J.S.: Dewey Decimal Classification: knowledge organization tool for the 21th century in: OCLC newsletter. 1995, no.222, S.32-36

Issue

21st ed.

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Abstract

This book gives a concise history and present status of the Dewey Decimal Classification with since its birth in America more than a century ago has spread to 135 countries of the world. Since it was not created for foreign users originally, the DDC has run into difficulties.

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Content

This work is a comprehensive guide to Edition 21 of the Dewey Decimal Classification (DDC 21). The previous edition was edited by John Phillip Comaromi, who also was the editor of DDC 20 and thus was able to impart in its pages information about the inner workings of the Decimal Classification Editorial Policy Committee, which guides the Classification's development. The manual begins with a brief history of the development of Dewey Decimal Classification (DDC) up to this edition and its impact internationally. It continues on to a review of the general structure of DDC and the 21st edition in particular, with emphasis on the framework ("Hierarchical Order," "Centered Entries") that aids the classifier in its use. An extensive part of this manual is an in-depth review of how DDC is updated with each edition, such as reductions and expansions, and detailed lists of such changes in each table and class. Each citation of a change indicates the previous location of the topic, usually in parentheses but also in textual explanations ("moved from 248.463"). A brief discussion of the topic moved or added provides substance to what otherwise would be lists of numbers. Where the changes are so dramatic that a new class or division structure has been developed, Comparative and Equivalence Tables are provided in volume 1 of DDC 21 (such as Life sciences in 560-590); any such list in this manual would only be redundant. In these cases, the only references to changes in this work are those topics that were moved from other classes. Besides these citations of changes, each class is introduced with a brief background discussion about its development or structure or both to familiarize the user with it. A new aspect in this edition of the DDC study manual is that it is combined with Marty Bloomberg and Hans Weber's An Introduction to Classification and Number Building in Dewey (Libraries Unlimited, 1976) to provide a complete reference for the application of DDC. Detailed examples of number building for each class will guide the classifier through the process that results in classifications for particular works within that class. In addition, at the end of each chapter, lists of book summaries are given as exercises in number analysis, with Library of Congress-assigned classifications to provide benchmarks. The last chapter covers book, or author, numbers, which-combined with the classification and often the date-provide unique call numbers for circulation and shelf arrangement. Guidelines in the application of Cutter tables and Library of Congress author numbers complete this comprehensive reference to the use of DDC 21. As with all such works, this was a tremendous undertaking, which coincided with the author completing a new edition of Conversion Tables: LC-Dewey, Dewey-LC (Libraries Unlimited, forthcoming). Helping hands are always welcome in our human existence, and this book is no exception. Grateful thanks are extended to Jane Riddle, at the NASA Goddard Space Flight Center Library, and to Darryl Hines, at SANAD Support Technologies, Inc., for their kind assistance in the completion of this study manual.

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Abstract

Outlines the bibliographic enterprise envisaged by Otlet and LaFontaine, which resulted in the UDC being developed in 1895, and the subsequent history of the scheme. Relationship with DDC from which it was derived deteriorated in the early 20th century and changes in funding, location, and editorship of Duyvis from 1929-59 had a profound effect on the scheme's development and management. Lloyd, Duyvis successor, reformed the revision structure, and further management changes from 1975 to the present day, culminated in the formation of the UDC Consortium in 1992. Notes the subsequent creation of a machine-readable Master Reference File and speedier revision procedures. Examines the scheme's structure, development, and influence on classification theory, problems caused by longevity and lack of standrad procedures, and highlights proposals for their reform to improve the scheme's suitability for an automated world. Explores research projects in 1960s which foreshadowed possibilities today, such as a complementary thesaurus and individualisation of single concepts notationally. Emphasizes the value of classification in a multilingual environment and outlines the future developments

Footnote

Contribution to part 1 of a 2 part series on the history of documentation and information science

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Abstract

The decimal system is one system of a number of possible systems of ordering - and a very symbolic also. The ordering in ten chapters, themes, numbers, etc. you can find often in history. Indeed Dewey is not the genius-founder of decimal classification (against a number of authors)! For ordering and structuring separate schemes within a classification DDC creates a number of important negative solutions, e.g. in the main classes the 'lost' of physics and of medicine as special schemes: Nearly a catastrophe in the times of STM! And against an enormous tradition like Leibniz 1646 - 1716) et alii! Compare Bliss: The Bliss-Classification gives space for 6 numbers »sciences« in a context of 26 classes. Therefore the result in short: DDC (and UDC of course!) are »flowers« of the past, of the first decades of century 20! As a fact the Decimal Classification within the tradition of Melvil Dewey is not a final work: See the increasing number of newly constructed decimal classifications during the years 80 and 90 of the 20th century! Nevertheless DDC is a very great (problem and) solution in its development, internationality, reception - and edge-stone for many thinkers and librarians throughout the world - and an important example for modern translational work! Magda Heiner-Freiling has given to us a great stone for the edifice of Modern DDC: Requiescat in pace!

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Source

Challenges in knowledge representation and organization for the 21st century: Integration of knowledge across boundaries. Proceedings of the 7th ISKO International Conference Granada, Spain, July 10-13, 2002. Ed.: M. López-Huertas

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Footnote

Rez. in: Knowledge organization 31(2004) no.2, S.112-114 (M.P. Satija) : "With nearly 130 years of eventful and checkered history, the Dewey Decimal Classification (DDC) is the oldest living yet thriving modern library classification. Having undergone 21 revisions, it is the most applied library classification structure all over the world. Apart from its use in libraries in more than 135 countries across six continents, many national and trade bibliographies use it for content organization. Furthermore, it is now making successful forays into the world of electronic documents and networked information. The print version of the 22nd edition was released in September 2003, two months later than the scheduled time of July 2003, and two months after the release of the electronic version, WebDewey. The period between print editions now seems settled to seven years as a matter of policy. As WebDewey, an the other hand, is updated an a quarterly basis, what really constitutes a new edition is problematic; edition is rolling, always in a flux without much fixity. The last half century, and more specifically the tenure of Benjamin A. Custer as editor (1956-1980; Editions 16-19), has been an era of structural changes in the DDC, backed by professional management and organizational planning. Custer was instrumental in not only resuscitating the system, but also in putting DDC back an the path of progress. His able successor, Dr. John P. Comaromi, edited the 20`h edition (1989) and ushered in a period of simplification and consolidation. Following the acquisition of Forest Press by OCLC in 1988, much more research has gone into making new editions of the DDC. The OCLC Office of Research has involved itself in classification research, especially in the harmonization of various knowledge classification systems and mapping of DDC numbers to subject headings, above all to make DDC capable of organizing electronic information of every sort. The acquisition of DDC by OCLC has also inaugurated an era of new products and services, along with organized marketing. DDC21 (1996) was a product of high IT, and the 22nd edition can safely be termed a child of network technology. It is indeed the first edition produced in the web environment. To stay abreast of current developments an knowledge practices, the editors relied an the Internet and electronic databases for new topics and terms. Editors and policy makes got constant feedback and suggestions via the Internet to add new features and to achieve accuracy and efficiency. In addition to the feedback and expert advice, this edition, as usual, is based an actual classification of three quarters of a million current books in the Decimal Classification Division of the Library of Congress since 1996.
Changes DDC22 is the second edition prepared by Joan S. Mitchell who took over as editor in 1993. It carries forward the policies and improvements started in DDC21, especially the onslaught an the Christian and western cultural blas in the schedules and tables. The plan for reducing Christian blas in 200 Religion, initiated in DDC21, has now been completed, with some additional provisions in 296 and 297. An outstanding change has been the abrogation of Table 7 Persons. The functions of Table 7 are now filled by using T1-08 and whatever notation is appropriate from 011-999. There are at least six places in the tables and 12 places in the schedules where the use of T7 was prescribed; what good the abolition of T7 has produced is not clear. In fact, it does make number building in some cases a bit circuitous, especially while using Table 3C. It has also resulted in the reuse of many DDC 21 numbers with new meanings. However, some numbers remain the same e.g., Social customs of artists 390.47 (both in DDC21 and DDC22). A few numbers have also become shorter in length. In compliance with the recommendations of D'Elia's survey, all works relating to directories of travel facilities such as hotels, lodges, Motels, inns, have been shifted to 910.46 and to 913/919 whereas 647.94 continues to be in place for general information about hotels. A common practice in previous editions, that is full class or extensive revisions (phoenix schedules), appear to have been discontinued in the preparation of DDC22. But minor changes are numerous. There are more than one thousand relocations and discontiuations of class numbers. Some 40 numbers have been reused. ... However, all these changes are not those projected as slated changes for DDC22 in the DDC21 (1996), namely in 520 Astronomy, 355-359 Military science, 636-639 Animal husbandry and 690 Buildings. Obviously the switch over to the DDC 22 will put less strain an libraries. There has been considerable improvement in the manual, now shifted to volume 1 of the print edition (pp. 1-182). Notes in the manual have been shortened by removing redundant information and by dividing them into smaller sections. Some information from the manual has been transferred to the schedules and tables, in the form of notes. The manual is now clearer and easier to read. Flow Charts, built-in numbers, and see also references should help classifiers achieve greater consistency. The relative index has been beefed up. With its 928 pages, it is 333 pages longer than the previous one, including new built-in numbers and many additional terms. The entry vocabulary is wide-based and current. DDC 22, the first edition of this millennium, has kept pace with the fast changing information environment to map and organize it squarely. To quote our friends at OCLC: knowledge is a big world, and they have organized it."

Object

DDC-22

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Abstract

The Library of Congress Classification (LCC), originally designed for classifying the Library's own collection, is now used in a wide range of libraries, both in the United States and abroad. This entry recounts its history and development from its genesis to the present time, leading up to an explanation of LCC structure, tables, and notation. It then considers the system's potential for wider application in the online age, through speculation on using LCC as a tool for (a) partitioning large files; (b) generating domain-specific taxonomies; and (c) integrating classification and controlled subject terms for improved retrieval in the online public access catalog (OPAC) and the Internet. Finally, analyzing both its strong and relatively weak features, it addresses the question of whether in its current state LCC is in all respects ready for playing such roles

Date

27. 8.2011 14:22:42

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Footnote

Übers. des Titels: The development of partnerships: the publication of the 21st edition of the Dewey Decimal Classification

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Abstract

All classifications are based on ideologies and Dewey is marked by its author's origins in 19th century North America. Subsequent revisions indicate changed ways of understanding the world. Section 157 (psycho-pathology) is now included with 616.89 (mental troubles), reflecting the move to a genetic-based approach. Table 5 (racial, ethnic and national groups) is however unchanged, despite changing views on such categorisation

Source

Bulletin d'informations de l'Association des Bibliothecaires Francais. 1997, no.175, S.22-23

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Date

22. 3.2008 17:56:19

LCSH

Classification / Books / History
Catalogs, Classified / History

Subject

Classification / Books / History
Catalogs, Classified / History

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Content

"As knowledge brokers, we are living in interesting times for libraries and librarians. We wonder sometimes if our traditional tools like the Dewey Decimal Classification (DDC) system can cope with the onslaught of information. The categories provided don't always seem adequate for the knowledge-discovery habits of today's patrons. They have grown accustomed to new ways for their information needs to be met, from the fire-and-forget style of a hard-to-control classic Google search to the pervasive, always-on style of Google Now, anticipating users' information needs without their having even asked a verbal question. Contrariwise, I believe that we, as librarians, could be making better use of our tools. Many (like the DDC) are a reflection of the same social and epistemological forces that brought about modernity at the turn of the last century. We as librarians are in the unique position of providing services that are as ground-breaking as these tools. As we see the need to provide unique and cutting-edge knowledge discovery to our users, I argue in this article that the DDC can play a key role in fulfilling this purpose."

Source

Knowledge quest. 42(2013) no.2, S.22-29

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Abstract

Achieving widespread agreement on subject organization is a complex task, and a challenge greater than that of creating a standard bibliographic description for international exchange-the goal of Universal Bibliographic Control (UBC). This article traces the history of the Universal Decimal Classification (UDC), its relationship with other schemes, and opportunities for further collaboration.

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Abstract

This entry discusses the Dewey Decimal Classification's value proposition as a general knowledge organization system in terms of basic design, history, ongoing development, translations, mappings, applications, and research. The authors conclude with prospects for use of the DDC inside and outside of libraries.

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Abstract

Addresses revisions and expansions in both the print and electronic versions of the 21st edition; the international use of Dewey; its use in national bibliographies; and the inherent challenges of translation, as exemplifies by the Spanish translation of the 20th edition

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Abstract

This entry outlines the history, application, and nature of the Universal Decimal Classification (UDC). It explains its structure, management, revision, and the many changes that have taken place since the Task Force for UDC Development reported in 1990, and the UDC Consortium was formed. This led to the creation of the machine-readable database, or Master Reference File (MRF), consisting of some 66,000 terms, which forms the basis of all published editions and is revised and updated annually. Revision procedures and applications in an online environment are noted and the potential for future development discussed.

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Abstract

The spread of DDC in the UK can be traced to networking in the 1870s between the librarians of the new municipal free libraries and the American librarians who were promoting new ideas through conferences and associations. Manchester Free Library was particularly influential in the development of the library service in the UK. The first use of DDC seems to have been at Manchester, as a result of networking at the first Conference of Librarians in 1877. This interest in DDC in Manchester therefore significantly contributed to the acceptance of DDC as the standard scheme for UK public libraries. Traditions of networking and cooperation are illustrated in this history - just as they were exemplified by Magda Heiner-Freiling in her project DDC German.