International Dewey Users

Meeting16 August 2011

IFLA

San Juan

Joan S. MitchellEditor in Chief, DDCOCLC mitchelj@oclc.org

DDC 23: It’s Here!DDC 23: It’s Here!

DDC 23 is here! Start using it! DDC 23 is here! Start using it!

Your roleYour role

DDC 23 is dedicated to the worldwide Dewey Community!

OutlineOutline

• Overview

• Three case studies

• Dewey linked data

• Learning opportunities

• Keeping up with the DDC

Overview of DDC 23Overview of DDC 23

• Major updates in religion, law, education, food and clothing, graphic arts, cinematography and videography, ancient and modern world

• Overhaul of groups of people

• A host of new numbers (e.g., bullying, cloud computing, end of Mubārak administration))

• Structural changes to support machine display and retrieval, and classifier efficiency

Case study: 370 EducationCase study:

370 Education

370 Education370 Education

Generalize from an international viewpoint:

•Levels of education

•Kinds of schools

•Specific subjects in primary education

•Policy issues in education

Levels of education (1)Levels of education (1)

•372 Primary education (Elementary education)

•373 Secondary education

•374 Adult education

•378 Higher education (Tertiary education)

Levels of education (2)Levels of education (2)

372.24 Specific levels of primary education

372.241 Lower level

Class here grades 1–3

372.242 Intermediate level

Former heading: Upper level

Class here grades 4–6

. . .

372(.243) Upper level

(Optional number; prefer 373.236)

Class here lower secondary level . . .

Kinds of schoolsKinds of schools

371.05 Public schools distinguished by source of funding, locus of control, and mandate [formerly 371.01]

Class here academy schools, charter schools

Specific subjects in primary education (1)Specific subjects in primary education (1)

372.6 Language arts (Communication skills)

New option in English-language edition:

(Option: Class here language arts (communication skills) in a

language other than English; in that case, class language arts (communication skills) in English in 372.6521)

New option in German-language edition:

(Option: Hier auch Sprachkompetenz (Kommunikationsfertigkeiten) in einer anderen Sprache als Deutsch; klassifiziere in diesem Fall Sprachkompetenz (Kommunikationsfertigkeiten) in Deutsch in 372.6531)

 

Specific subjects in primary education (2)Specific subjects in primary education (2)

Policy issues in educationPolicy issues in education

379.1282–.1289 Support by specific regional intergovernmental organizations

Add to base number 379.128 the numbers following 341.24 in 341.242-341.249, e.g., support by European Union 379.12822

Case study: Groups of people

Case study: Groups of people

Groups of people (1)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)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 collectedbiography of groups of

people

Groups of people (3)Groups of people (3)

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

•Reversal in preference order in 302–307 to topic/group, e.g., friendship in women 302.34082, not 305.4 Women

Case study: Dual headingsCase study:

Dual headings

Dual headings: DefinitionDual 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 22Dual headings: DDC 22

004–006Data processing Computer science

570 Life sciences Biology

943 Central Europe Germany

Dual headings: DDC 23Dual headings: DDC 23

004–006Computer science

004–006Data processing Computer science

570 Biology

570 Life sciences Biology

943 Germany and neighboring central European countries

943 Central Europe Germany

Dewey Linked DataDewey Linked Data

dewey.infodewey.info

• Access to the top three levels of the DDC in eleven languages

• Access to Abridged Edition 14 (assignable numbers and captions) in three languages

• Actionable URIs for every class

• Classification semantics encoded in SKOS

• Representations for machines (RDF) and for humans (XHTML+RDFa)

• Data is reusable under a Creative Commons BY-NC-ND license

Linked data in dewey.info (1)Linked data in dewey.info (1)

http://dewey.info/class/005/about

Linked data in dewey.info (2)Linked data in dewey.info (2)

http://dewey.info/class/305.895/a14/about

Linked data in dewey.info (3)Linked data in dewey.info (3)

http://dewey.info/class/305.895/a14/about.rdf

Learning opportunities: Online resourcesLearning opportunities: Online resources

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

• 025.431: The Dewey Blog http://ddc.typepad.com

• DDC 23 Introduction, Glossary, New Features, and Relocations and Discontinuations available for download at: http://www.oclc.org/us/en/dewey/versions/print/default.htm

• Mini webinars and updated training materials coming in late 2011!

Learning opportunities: Workshops and seminarsLearning opportunities: Workshops and seminars

• What’s New with DDC and What Do I Need to Know (9 September, Schaumberg, IL) http://www.laconi.net/tech/programs/

• Strength in numbers: Going local, global, and mobile with Dewey (15 September, London) http://www.cilip.org.uk/dewey2011/pages/default.aspx

• Dewey in Scotland (16 September, Edinburgh) http://communities.cilip.org.uk/blogs/catalogueandindex/archive/2011/08/11/dewey-in-scotland-the-dewey-decimal-classification-and-scotland-s-information.aspx

• The Future of DDC is Now!:  Uncovering the Mysteries of DDC 23 (15 November, Fort Wayne, IN) http://www.ilfonline.org/events/2011/11/14/general/2011-ilf-annual-conference/

Keeping up with the DDCKeeping up with the DDC

• Every update is automatically included in WebDewey 2.0

• Errata addressing significant typos in DDC 23 available at: http://www.oclc.org/us/en/dewey/versions/print/default.htm

• New and Changed Entries retired

• Short-term replacement: PDF versions of updated schedule and table entries (link under Updates coming soon)

• Permanent change-notification solution coming inside WebDewey 2.0

Sample update:363.41_20110727_DDC 23.pdfSample update:363.41_20110727_DDC 23.pdf

Thank You!Thank You!

Some useful linksSome useful links

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

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)