New Features in Dewey Decimal Classification system.pdf

Overview

Edition 22 is the first edition of the Dewey Decimal Classification to be produced in

the context of the web environment. The web has enabled us to update the DDC

continuously and provide those updates regularly to our users. The web has expanded

our access to information sources and facilitated timely cooperation with our

international user base. It has also challenged us to provide features that promote

efficiency and accuracy in classification.

Continuous Updating

Edition 22 reflects the continuous updating policy in effect since the publication of

Edition 21 in 1996. Edition 21 was the first DDC edition to be published in print and

electronic form simultaneously. We have used the electronic versions and supplemental

monthly web postings as our chief vehicles for delivering updates to our users. From

1996 through 2001, Dewey for Windows was issued annually. Since 2000, WebDewey

has been the main source for updates and a fully updated version is released quarterly.

Since 1997, we have also posted selected new numbers and changes to the DDC on a

monthly basis on our web site ( www.oclc.org/dewey ). All of these updates have been

incorporated into Edition 22.

New Numbers and Topics

Edition 22 contains many new numbers and topics. These range from new

geographic provisions, e.g., the updating of administrative regions in Quebec, to new

numbers throughout the DDC for emerging topics in fields such as computer science and

engineering, sociology, medicine, and history. Many new built number entries and

additional terms have been added to the Relative Index to cover sought topics and

provide a wider base of entry vocabulary. We have waited for the publication of Edition

22 to introduce changes that have an impact across the DDC and substantial changes to

disciplines.

International Cooperation

Edition 22 has benefited from the ongoing advice of the Decimal Classification

Editorial Policy Committee (EPC) and our translation partners. Both groups provide a

diverse outlook that is reflected in improvements to terminology throughout Edition 22,

and in updated developments, particularly in geographic areas, law, political parties,

language, literature, and historical periods.

Classifier Efficiency

Two striking changes in Edition 22, the removal of Table 7 and the streamlining of

the Manual, have been motivated by a desire to promote classifier efficiency. We have

removed Table 7 and replaced it with direct use of notation already available in the

Reprinted from Dewey Decimal Classification and Relative Index , Edition 22.

OCLC Online Computer Library Center, Inc.

schedules and in notation 08 from Table 1. We have reviewed each Manual entry with an

eye toward classifier efficiency. Information easily accommodated in notes in the tables

and schedules has been transferred from the Manual, and redundant information already

in the schedules and tables has been eliminated from the Manual. We have converted the

Library of Congress Decimal Classification Division DDC application policies

previously described in the Manual into standard Dewey practice. We have moved basic

instructions on the use of the Dewey Decimal Classification to the Introduction, and

background information to Dewey Decimal Classification: Principles and Application.

We have revised the remaining Manual entries in a consistent style to promote quick

understanding and efficient use.

Major Changes in Edition 22

In addition to the removal of Table 7 and the streamlining of the Manual, there are

several major changes introduced in Edition 22. We have completely updated 004–006

Data processing Computer science. In Edition 21, we initiated a two-edition plan to

reduce Christian bias in 200 Religion. Edition 22 contains the rest of the relocations and

expansions in 200 Religion outlined in that plan. We have updated developments and

terminology for social groups and institutions in 305–306, and removed many near

duplicate provisions in that schedule. We have introduced several improvements to 340

Law that relate to the law of nations, human rights, and intergovernmental organizations.

We have introduced a substantial update in 510 Mathematics, including the relocation of

some topics to the new development at 518 Numerical analysis. We have updated and

expanded 610 Medicine and health, and improved indexing for medical topics. We have

moved facilities for travelers from 647.94 to 910.46 and to specific area numbers in

913–919, and introduced updated historical periods throughout 930–990. Likewise, we

have updated Table 2 Geographic Areas, Historical Periods, Persons. We have changed

the name of Table 5 from “Racial, Ethnic, National Groups” to “Ethnic and National

Groups” to reflect the de-emphasis on race in current scholarship. We have also greatly

expanded provisions for American native peoples and languages in Tables 5 and 6. A

complete list of relocations, discontinuations, and reused numbers in Edition 22 is

available immediately following Tables 1–6. A selected list of new numbers, revisions,

and expansions in Edition 22 follows.

Selected List of Changes in Edition 22

Selected Changes in the Tables

Table 1. Standard Subdivisions

—029

Commercial miscellany

Subdivisions discontinued to —029 and reused immediately for

geographic treatment

Table 2. Geographic Areas, Historical Periods, Persons

—23

Collected persons treatment of members of specific ethnic and national

groups

New number*

—29

Persons treatment of nonhumans

New number*

—411–414 Scotland

Revised and expanded*

—42

Revised and expanded*

—431–436 Germany and Austria

Revised and expanded

—437

Czech Republic and Slovakia

Revised and expanded*

—438

Poland

Revised and expanded*

—44

France and Monaco

Revised and expanded*

—451–457 Italy

Revised and expanded*

—541–548 India

Revised and expanded

—54911

Federally Administered Tribal Areas

Relocated from —54912*

England and Wales

—549149

Isl

d Capital Territory

Relocated from —549142

—5492

Bangladesh

Revised and expanded

—55

Revised and expanded

—5987

East Timor

Relocated from —5986*

—624–629 Sudan

Revised

—632–634 Ethiopia

Revised*

—642–646 Morocco

—648

Western Sahara

Revised and expanded

—669

Nigeria

Revised

—6751

Democratic Republic of the Congo

Revised*

—682–687 Republic of South Africa

Revised and expanded*

—714

Revised and expanded

—719

Northern territories

Revised and expanded*

—728537

Región Autónoma del Atlántico Norte

Relocated from —728532

—7287

Panama

Revised and expanded*

—78864

Broomfield County [of Colorado]

Relocated from —78863, —78872 —78881, and —78884*

Iran

Quebec

—7951

Western Oregon

—7955

Eastern Washington

—7976

Western Washington

New numbers*

—85

Revised

—861

Colombia

Revised and expanded*

—881 Guyana

—883 Suriname

Revised and expanded

Table 3B. Subdivisions for Works by or about More than One Author

—30877

Picaresque fiction

New number

Table 3C. Notation to Be Added Where Instructed in Table 3B, 700.4, 791.4,

808–809

—32

Places

Travel relocated from —355

—35

Humanity

Revised and expanded

—36

Physical and natural phenomena

Agriculture, scientific themes, and comprehensive works on scientific

and technical themes relocated from —356

—377

Magic and witchcraft

New number

Table 4. Subdivisions of Individual Languages and Language Families

—31

Specialized dictionaries

Expanded

—5

Grammar of the standard form of the language Syntax of the standard

form of the language

Expanded

—7971

Eastern Oregon

Peru

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