DDC 23 Workshop

12 August 2011

UMET

Joan S. Mitchell Editor in Chief, DDC OCLC mitchelj@oclc.org

DDC 23: An Overview

The slides in this presentation may be reused in accordance with the Creative Commons Attribution-NonCommercial 3.0 Unported License.

DDC 23 is ©2011 OCLC Online Computer Library Center, Inc. All copyright rights in previous editions of the Dewey Decimal Classification system are owned by OCLC. DDC, Dewey, Dewey Decimal Classification and WebDewey are registered trademarks/service marks of OCLC.

DDC 23 Workshop: Outcomes

• Understand key changes in DDC 23

• Understand the reasons behind the changes

• Understand the role of the user in shaping DDC 23

• Understand different representations of the DDC

• Learn about DDC research activities

• Understand DDC 23 in the context of the Dewey ecosystem

Outline

• Major updates: Tables

• Major updates: Schedules

• Structural changes

• Behind the scenes: Publication of DDC 23

• DDC 23 in the big picture

Major Updates: Tables

Groups of people (1)

• “kinds of persons” “groups of people”

T1—08 Groups of people

305 Groups of people

• “persons treatment” “biography”

T1—09 History, geographic treatment, biography

Table 2 Geographic areas, historical periods, biography

Groups of people (2)

T1—081 People by gender or sex

T1—0811 Men

T1—0865 People by marital status

T1—0867 Transgender and intersex people

T1—0925–0928 New numbers for collected biography of groups of people

Groups of people (3)

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

Identification of standard subdivisions

• Revisions to internal tables under T1—08, T1—0901–0905, and T1—093–099 (not standard subdivisions)

• Contents of table under T3B—1–8 moved to subdivisions of T3B—1 Poetry (standard subdivisions without initial 0)

• New note highlighting special expansions under standard subdivisions

New note highlighting special expansions under standard subdivision notation

401.4 Communication; semantics, pragmatics, languages for special purposes

Notation 014 from Table 1 as modified below

. . .

(similar entry also appears under T4—014)

Tables 1-6: Selected additional updates

• Table 1: Notation for topics in communication, green technology, research

• Table 2: Ancient and modern world

• Table 3: T3C—3 Arts and literature

• Table 5: Updates for selected peoples, e.g., T5—9457 Sámi

• Table 6: Updates for selected languages, e.g., T6—9457 Sámi

Major Updates: Schedules

Sorting out digital trends: 004.11-004.16 Digital computers

> 004.11-004.16 Digital computers

Multifunctional digital devices are classed with their predominant function . . . a work that focuses on a specific function other than the predominant function is classed with the specific function

155 Differential and developmental psychology: New add table applied to various groups of people 155 Differential and developmental psychology

2 Sensory perception, movement, emotions, psychological drives

. . .

3 Conscious mental processes and intelligence

. . .

8 Individual, evolutionary, environmental psychology

. . .

9 Applied psychology

. . .

Updates to clothing in 391/646/687 (1)

• Terminology updated to match industry practice (e.g., activewear, loungewear, headwear) and geographic variations (e.g., vests [undergarments])

• Relocations and expansions to support improved developments

Updates to clothing in 391/646/687 (2)

646.433 Suits

. . .

Pants (trousers) relocated to 646.436

. . .

646.436 Pants (Trousers) [formerly 646.433]

Geographic variations in languages: Regularized and expanded (1)

447[.1-.8] Geographic variations in parts of France

Relocated to 447.9441-447.9448

Geographic variations in languages: Regularized and expanded (2)

447.94-.98 Geographic variations in specific continents, countries, localities in modern world

Add to base number 447.9 notation 4-9 from Table 2, e.g., geographic variations in parts of France 447.9441-447.9448 [formerly 447.1-447.8], geographic variations in France 447.944, dialects of Quebec 447.9714, Haitian Creole 447.97294

511.3 Mathematical logic (Symbolic logic): Expansion 511.314 Modal logic

Including alethic, deontic, dynamic, epistemic, provability, temporal logic; possible worlds

511.317 Conditional logic

Including counterfactuals

511.318 Probabilistic logic

See also 161 for induction; also 519.2 for applied mathematical probabilities

Relocation and expansion for Trans-Neptunian objects and Pluto

523.49 Trans-Neptunian objects [formerly 523.48]

523.492 Kuiper belt objects

523.492 2 *Pluto [formerly 523.482]

523.494 Scattered disk objects

523.497 Oort cloud objects

616.0835 Adolescent medicine vs. 618.92 Pediatrics

616.008 3 Young people

Do not use for diseases of infants and children up to puberty, comprehensive works on child and adolescent medicine; class in 618.92

616.008 35 Young people twelve to twenty

Do not use for diseases of young people twelve to twenty who have not reached puberty; class in 618.92

Class here adolescent medicine

Breakfast, lunch, and dinner in global context

641.52 First meal of the day

(brunches, breakfasts)

641.53 Light meals

(snacks; dinners, lunches, suppers, teas as light meals)

641.54 Main meal of the day

(dinners, lunches, suppers, teas as main meals)

810 American literature in English

PERIOD TABLE FOR AMERICAN LITERATURE IN ENGLISH

1 Colonial period, 1607-1176

2 1776-1829

3 1830-1861

. . .

(OPTIONAL PERIOD TABLE FOR AMERICAN LITERATURE IN ENGLISH

(For Canada

(3 Colonial period to 1867 in Canada

. . .

More major updates coming later today!!!

Structural changes

Dual headings: Definition

• A heading with two separate terms, the first of which is the main topic and the second of which is the major subordinate topic, e.g., 570 Life sciences Biology

• Main topic and major subordinate topic share the same number and most of the subdivisions

Dual headings: DDC 22

004–006 Data processing Computer science

570 Life sciences Biology

943 Central Europe Germany

Dual headings: DDC 23

004–006 Computer science

004–006 Data processing Computer science

570 Biology

570 Life sciences Biology

943 Germany and neighboring central European countries

943 Central Europe Germany

Elimination of unbalanced spans: DDC 22

449 Occitan, Catalan, Franco-Provençal

.01-.8 Subdivisions of Occitan, Langue d’oc

.709449 Provençal dialect

Elimination of unbalanced spans: DDC 23

449 Occitan, Catalan, Franco-Provençal

.01-.09 Standard subdivisions of Occitan, Langue d’oc

.1-.8 Subdivisions of Occitan, Langue d’oc

.709449 Provençal dialect

Behind the scenes: Publication of DDC 23

Behind the scenes

• Moved from proprietary format to MARCXML

• 4th generation Editorial Support System (ESS)

• WebDewey 2.0

Class record for 004.36 in ESS 4.0 (MARC 21 Classification Format)

Class record for 004.36 in DDC 23 (print)

Class record for 004.36 in ESS 4.0 (MARC 21 Classification Format)

750 #7 $a Distributed processing $0 (OCoLC-D)och00038935 $2 ddcri $9 as=AP $9 ps=PE

Relative Index record for “Distributed processing” in ESS 4.0 (MARC 21 Authority Format)

Excerpt from Relative Index in DDC 23 (print)

DDC 23 record for 004.36 in WebDewey 2.0

The big picture

The Dewey ecosystem

flickr.com/photos/disneyite/1506813031/ by Donna62 on Flickr

Linked data

DDC data

Categorized content

Translations

Mappings

Translations

Mappings and Crosswalks

DDC LCSH

MeSH

SWD

RAMEAU

SAB

BISAC SEARS

CSH

UDC

LCC

SAO

Nuovo Soggettario

WebDewey (SV)

Thank You!

Some Useful Links

DDC 23 oclc.org/us/en/info/ddc23

DDC 23 workshop registration.oclc.org/reg/?pc=DDC23IFLAwkshp

DDC 23 webinar http://tinyurl.com/3cyqn7q

WebDewey 2.0 http://dewey.org/webdewey

dewey.info http://dewey.info

DeweyBrowser oclc.org/research/researchworks/ddc/browser.htm

Classify classify.oclc.org/classify2

025.431: The Dewey blog

http://ddc.typepad.com

Questions? dewey@loc.gov (Dewey Editorial Office) dewey@oclc.org (Licensing, group purchases, LIS program)

Picture credits for slide 23

Clockwise from upper left:

flickr.com/photos/ndalls/420996573 by Notre Dame Architecture Library on Flickr

flickr.com/photos/dubblethinkdesign/3579519738 by craig.keeling on Flickr

flickr.com/photos/henrik_larsson/269283033/in/set-72157594327694557 by henke on Flickr

flickr.com/photos/75905404@N00/2056494616 by OZinOH on Flickr

flickr.com/photos/crystiancruz/3390704159 by Crystian Cruz on Flickr

flickr.com/photos/jonathanziapour/3126336204 by Jonathan Ziapour on Flickr