The DDC at Universitätsbibliothek Wien

The DDC at Universitätsbibliothek Wien

Universitätsbibliothek Wien29 April 2009

Joan S. MitchellEditor in Chief, DDCOCLCmitchelj@oclc.org

Complex KO Environment at UW

•Accession date scheme used for shelving

•GND authority file (PND, GKD, SWD)

•Two classification schemes:

• Basisklassifikation (BK) to be added in June 2009

• DDC to be introduced by 2014

What is the potential role of the DDC in this complex Knowledge Organization (KO) environment?

Outline

• What are the benefits of the DDC?

• What explicit and implicit relationships exist between the DDC and other KO tools?

• What are some uses of the DDC?

• What resources exist for DDC training?

• Discussion

What are the benefits of the DDC?

•Large amount of categorized content

•Organizational support

•Worldwide user community

•Language-independent representation

• Interoperable translations

•Mappings and crosswalks

DDC already associated with a large number of resources

• WorldCat

• ~25% of WorldCat records include explicit Dewey numbers plus more derived using FRBR work sets

• Number is growing, e.g., Deutsche Nationalbibliothek is now adding Dewey numbers to WorldCat nearly at the same rate as the Library of Congress

• Other utilities and databases, e.g., BIBSYS, NORART, NORBOK

• Digital libraries, e.g., World Digital Library

WorldCat

NORART

NORBOK: Doktoravhandlinger

World Digital Library

Organizational support

• Permanent editorial staff at LC and OCLC

• OCLC research and development teams

• Ten-member international advisory board (EPC):

• Current members from Australia, Canada, South Africa, UK, US

• National libraries and translation teams with observer status

Dewey Community

ACOC National Libraries

ALA Translation Teams

CILIP Research Partners

EDUG HILT (UK)

Konsortium DDC Deutsch DNB

NKKI JRC (EC)

SABINET CACAO (EC)

Editorial Policy Committee

LC & OCLC

DDC Editors

Dewey Users around the World

Language-independent representation

005.1 َمFَجFة IْرFَب Arabic

005.1 Programming English

005.1 Programmation French

005.1 Programmierung German

005.1 Προγραμματισμός Greek

005.1 Programmazione Italian

005.1 Программирование Russian

005.1 Programación Spanish

005.1 Programmering Swedish & Norwegian

005.1 Lập trình Vietnamese

Translations

Mappings to subject headings (1)

Library of Congress Subject Headings (LCSH)

Medical Subject Headings (MeSH)

Canadian Subject Headings (CSH)

Sears List of Subject Headings (Sears)

Book Industry Standards and Communications (BISAC) Subject Headings

Mappings to subject headings (2)

RAMEAU [French]

Schlagwortnormdatei (SWD)[German]

Nuovo Soggettario [Italian]

Sears Lista de Encabezamientos de Materia [Spanish]

LCSH-DDC mappings in WebDewey

SWD-DDC mappings in MelvilClass

SWD-DDC mappings

RAMEAU - DDC (broad level only)

620     $aAnesthesia$vLCSH (en ligne), 2005-02-21622 1  $aAnesthesia$vMeSH (en ligne), 2005-02-21624     $a610

Crosswalks between schemes

LCC – DDC (ClassWeb, Classify)

UDC – DDC (IZUM, Czech National Library)

SAB – DDC (Electronic updated version at National Library of Sweden)

But no explicit crosswalks for

RVK-DDC (some experimentation in Carmen)

BK-DDC (???)

Tools using explicit and derived relationships

• Classify

• VIAF

• WorldCat Identities

Classify

•DDC/LCC/NLM classifier

•Developed by OCLC Office of Research

•Based on FRBR cluster data

•Work-set summary of class numbers assigned

•Human interface + web service

Classify: Author search

Classify: Search results

Classify: Details

Classify: Link to DeweyBrowser

Paths to DDC numbers through VIAF

Teresa, Mother

Links between LC NA & PND via VIAF

WorldCat Identities

What are some uses of the DDC?

A few examples that focus on the use of the DDC to enhance browsing and retrieval . . .

Access Numbers: Examples (1)

History of Vienna, Linz, and Salzburg

082 00 $a 943.6 $2 22 (Austria)

083 0# $a 943.613 $2 22 (Vienna)

083 0# $a 943.624 $2 22 (Linz)

083 0# $a 943.632 $2 22 (Salzburg)

Access Numbers: Examples (2)

Geographic access in the British Library Newspaper Project:

Birmingham Post

083 0# $z 2 $a 424 $2 22 $q Uk (West Midlands)

083 0# $z 2 $a 42496 $2 22 $q Uk(Birmingham City)

Component Parts Example

Artistic themes in literature

082 04 $8 1 $a 808.80357 $2 22

085 ## $8 1.1 $b 808.80 $a 808.801 $c 808.303 $z 3C $s 357

Collections of literary texts from more than two literatures displaying specific features

Artistic themes

DeweyBrowser

DeweyBrowser (German)

DB example

BASE (Bielefeld Academic Search Engine)

BASE: Browse results

Shelfview: Book search

Shelfview: Virtual DDC view

Training: Resources

Einleitung in die Dewey-Dezimalklassification

http://www.ddc-deutsch.de/publikationen/pdf/DDC_22_Deutsch_Einleitung.pdf

Glossar

http://www.ddc-deutsch.de/publikationen/pdf/DDC_22_Deutsch_Glossar.pdf

Dewey-Dezimalklassification: Theorie und Praxis (Chan & Mitchell)

Dewey Training Site

http://www.oclc.org/dewey/resources/teachingsite/200801/default.htm

Application practice by key users in WorldCat, e.g., LC, BL, DNB

Discussion

How will you associate Dewey numbers with existing bibliographic records?

What kinds of materials will be classified by Dewey?

Will you contribute standard numbers to WorldCat?

Do you plan to assign access numbers as well as standard numbers?

Some Useful DDC Links

Dewey web site http://www.oclc.org/dewey/

New & Changed Entries         http://www.oclc.org/dewey/updates/new/default.htm

Discussion papers http://www.oclc.org/dewey/discussion/default.htm

025.431: The Dewey blog http://ddc.typepad.com

DDC Research Projects

Classify http://deweyresearch.oclc.org/classify2/

DeweyBrowser http://deweybrowser.oclc.org/ddcbrowser2/

WorldCat Identities http://www.worldcat.org/identities/

EDUG IT http://www.slainte.org.uk/edugit/

DDC Applications

BASE http://base.ub.unibielefeld.de/en/lab_browse_menu.php?menu=5

NORART http://www.nb.no/baser/norart/

NORBOK http://www.nb.no/baser/norbok2/norbok.php

World Digital Library http://www.wdl.org/