DDC 23th EditionDDC 23th Edition&&

It's Salient FeaturesIt's Salient Features

(Presented by)

Murchana BorahMilisha D'silva

ContentContent

● Introduction● History of DDC● Meaning of DDC

- Structure - Division - Tables - Ten Main Classes - Notation - Principle of Hierarchy

● DDC 23th Edition● Structure ● Features● Future

IntroductionIntroduction

● The 1st edition of DDC-devised by Melvil Dewey- came in 1876.

● The publication of a 42-pages pamphlet entitled 'A classification and subject index for cataloging and arranging the books and pamphlets of a library'

● The first edition was consisted of; - 12 pages of preparatory matter, - 12 pages of tables, and - 18 pages of index

● It contained nearly 1000 classes.

HistoryHistory

● DDC was conceived by Melvil Dewey in 1873.● It was first published in 1876.● It is published in full and abridged edition by OCLC.● OCLC owns all copyrigts in the DDC and licenses the

system for a variety of uses.● It is most widely used classification system in the world.● Translated into over thirty languages.● Its greatest strenght is that system is developed and

maintained in a national bibliographic agency, the library of congress.

Meaning of DDCMeaning of DDC

● DDC is the knowledge classification scheme where in subjects are divided into ten main classes (numbered 000-999 i.e Generalities to History and Geography), and subdivisions within a particular subject are indicated by decimals.

● Arrangement is done as per discipline.● Useful to organise knowledge in any form.● Facilitates browsing

Structure of DDCStructure of DDC

● Presented in DDC summeries in the begning of volume 2.

➔ First summary: ten main classes➔ Second summary: hundred divisions➔ Third summary: thousand sections

Division of DDCDivision of DDC

● Volume 1 : Tables and manual.● Volume 2 : summaries and Schedules ( 000-500).● Volume 3 : Schedules (600-900).● Volume 4 : Relative Index.

TablesTables● T1- Standard Subdivisions● T2- Geographic Areas, Historical Periods, Biography● T3- Subdivisions for the Arts, for Individual literatures,

for specific literary forms➢ T3A- Subdivisions for works by or about individual

authors➢ T3B- subdivisions for works by or about more then one

author➢ T3C- Notation to added where instructed in T3B● T4- Subdivisions for Individual Language and Language

families● T5- Ethnic and National Groups● T6- Languages

Ten Main ClassesTen Main Classes

● 000- General works, computer science and information● 100- Philosophy and psychology● 200- Religion● 300- Social Science● 400- Language● 500- Science● 600- Technology● 700- Arts and Recreation● 800- Literature● 900- History and Geography

NotationNotation

● Arabic numbers are used to represent each class in DDC.

● It gives both the unique meaning of class and its relation to other classes.

● Uses convention that no number should have fewer than three digits; zeros are used to fill out numbers

● Decimal Point or dot.

Principle of Hierarchy Principle of Hierarchy 

● Structural hierarchy: all topics are part of all the broader topics above them

● Notational Hierarchy: expressed by lenght of notation.

DDC 23th EditionDDC 23th Edition

● The 23rd edition of DDC was released in May 2011;● It is the product of a new approach to development of

print editions of the Dewey Decimal Classification.● It was prepared in the context of the web;● By-product of the underlying database;instead of as the

sole focus of editorial development.

FeaturesFeatures

Overall features of DDC 23th edition includes:

➢ Representation of groups of people;➢ Revisions to several standard subdivisions;➢ Updates throughout the tables and schedules;➢ Structural changes;➢ New editorial support system;➢ Different data format;➢ New data distribution mode.

STRUCTURAL CHANGESSTRUCTURAL CHANGES

1. Elimination of dual headings

004–006 Computer science004–006 Data processing Computer science

570 Biology570 Life sciences Biology

943 Germany and neighboring central European countries943 Central Europe Germany

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2. No unbalanced spans in the schedules and tables 305.805–.809 and 305.81–.89.

305.805–.89 Specific ethnic and national groups

DATA  REPRESENTATIONDATA  REPRESENTATION

1.Editorial Support System (ESS), 2010

2.MARCXML Format First,from proprietary format to MARC 21 formats for Classification and Authority data. Second, representation from the internal MARC formats to a MARCXMl representation

3. WebDewey 2.0

WebDewey 2.0

GROUPS OF PEOPLEGROUPS OF PEOPLE

1. “Kinds of persons” to “Groups of people”

T1—08 Groups of people305 Groups of people

2.“Persons treatment” to “Biography”

T1—09 History, geographic treatment, biographyTable 2 Geographic areas, historical periods, biography

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3. Consistent use of “people” against “persons”. For example: In Related Index, “Person” = Person (Legal concept) Persons (Individuals) People

The index term for groups of people in general is “People”; the general index term for individuals is “Persons (Individuals).”

4. Ripple effect of changes throughout DDC 23, especially for groups of people in 155, 305–306, 331, and 362

STANDARD SUBDIVISIONSSTANDARD SUBDIVISIONS1. Note “Notation 0X from Table 1 as modified below” - to highlighting special expansions understandard subdivisionsEx- 401.4 Communication; semantics, pragmatics, languages for special purposes Notation 014 from Table 1 as modified below

2. Special provisions; not Standard Subdivision - an added note appears under the 'special provision' ifaddition in parallel to the standard Table 1 provision is desired.Ex- Revision to internal table under T1—08, T1—0901–0905, and T1—093–099

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3. Standard subdivisions without initial 0Ex: Contents of table under T3B—1–8 moved tosubdivisions of T3B—1 Poetry

UPDATES : TABLESUPDATES : TABLES

● Table 2: Significant expansion in Ancient world,Italy, Switzerland, Sweden, Finland, Turkey, Indonesia, Vietnam, and Canada

● Table 3C: Significant expansion in —3 Arts and literature—3 Arts and literature dealing with specific themes and subjects that draws the notation in closer alignment with parallel subjects in 001–999

● Table 4: Special expansion under —014 Communication; semantics, pragmatics, languages for special purposes

● Tables 5 and 6: Featured expansions for peoples and languages, respectively.

UPDATES : SCHEDULESUPDATES : SCHEDULES

● 000 Computer science, information & general works

> 004.11-004.16 Digital computers

● 100 Psychology and Philosophy 155 Differential and development psychology 160 & 513 Logic and Symbolic logic

● 200 Religion 281.9 Orthodox church 297 Islam

● 300 Social sciences

371.05 Public schools distinguished by source of funding,locus of control, and mandate

390 Provision for food and clothing in Customs, etiquette, folklore● 400 Language

427[.1–.8] Geographic variations in parts of England

427.94-.99 Geographic variations in specific continents, countries, localities in modern world

● 500 Science

511.314 Modal logic

511.317 Conditional logic

511.318 Probabilistic logic

● 600 Technology 690 “Buildings” → “Construction of buildings” 690.3 Special topics of buildings 690.4 Specific parts of buildings● 700 Art and Creation 741.5 Comic books, graphic novels, fotonovelas,cartoons, caricatures, comic strips 777 Cinematography and Videography● 800 Literature

808.025 Plagiarism 808.03 Specific elements of rhetoric

● 900 History and Geography 909.83 21st century, 2000–2099 930 History of ancient world to ca. 499

FutureFuture

● The next edition, i.e., DDC-24 is likely to be published in 2018 to continue the changes hinted in DDC-23● As evinced by the two previous editions the DDC is moving

towards internationalisation by gradually removing White, Anglo-Saxon and Protestant (WASP) bias

● Facet structure is becoming transparent with a capability to hold together many facets in a single class number.

● Efforts have been made to design and market many Dewey products, such as bookmarks, AV teaching kit, Guides to the full, abridged and electronic versions of the DDC, and Dewey posters and exclusive publication of three main summaries.

● Research is going on to find wider applications of the DDC in all sorts of information management.

● Organise information on the internet.● Some of the question currently addressed to the DDC are:

- How can the classification be made more effective for classifiers? - How a standard English language classification be built that also meets the needs of international users? - How to make DDC more effective in OPACs? - How can the classification be made more useful for the end-users? - What can be done to make the DDC constantly relevant in the future?

ReferencesReferences

● Contributors. (2012). Expansions from DDC 22 to DDC 23. Retrieved September 30, 2015, from http://ddc.typepad.com/025431/2012/02/expansions-from-ddc-22-to-ddc-23.html

● Mitchell, J. S. (2011). DDC 23: An Overview. Retrieved September 30, 2015, from http://webcache.googleusercontent.com/search?q=cache:wtN1SScPqXcJ:www.univie.ac.at/voeb/fileadmin/Dateien/Kommissionen/Sacherschliessung/DDC23_Overview_-_Mitchell.pdf+&cd=5&hl=en&ct=clnk&gl=in&client=ubuntu

● K, S. (2013). Short Notes about DDC. Retrieved September 30, 2015, from http://newonlinelibrary.blogspot.in/2013/07/short-notes-about-ddc.html

● New Features in Edition 23. (2011). Retrieved September 30, 2015, from http://webcache.googleusercontent.com/search?q=cache:5TO7OfY4ebgJ:https://www.oclc.org/content/dam/oclc/dewey/versions/print/new_features.pdf+&cd=2&hl=en&ct=clnk&gl=in&client=ubuntu

● Dewey Decimal Classification - FAQ. (n.d.). Retrieved September 30, 2015, from http://staff.oclc.org/~dewey/dewey.htm

● Australia, E. S. (n.d.). Dewey Decimal Classification - edition 23. Retrieved from http://www2.curriculum.edu.au/scis/connections/issue_79_2011/articles/dewey_decimal_classification_-_edition_23.html