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Dewey update: what’s new with the DDC?. Presentation at OLA Superconference February 28, 2010 Alison Hitchens Cataloguing & Metadata Librarian University of Waterloo Library. Introduction. Why this session? DDC23 coming in 2011! Why update the DDC? To add new topics To clarify
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Dewey update: what’s new with the DDC? Presentation at OLA Superconference February 28, 2010 Alison Hitchens Cataloguing & Metadata Librarian University of Waterloo Library
Introduction • Why this session? • DDC23 coming in 2011! • Why update the DDC? • To add new topics • To clarify • To modernize • To internationalize
Sources • Dewey blog • http://ddc.typepad.com/ • Dewey newsletters • Dewey new and changed entries • http://www.oclc.org/dewey/updates/new/ • Discussion papers • http://www.oclc.org/dewey/discussion/ • Conference presentations • http://www.oclc.org/dewey/news/conferences/default.htm
Agenda • What changed 2003-2009 • Looking forward: what changes are coming • Dewey projects • Questions?
What Changed 2003-2009 Types of changes: Staying current From “including” to new number Comprehensive/Interdisciplinary works Splitting concepts Geographic areas
Updated treatment of terrorism 363.325 Terrorism Including cyberterrorism Class here bombing; terrorism and responses to terrorism associated with a particular aspect of public safety; interdisciplinary works on terrorism 363.3251 Aspects of terrorism 363.3253 *Bioterrorism and chemical terrorism 363.3255 *Nuclear terrorism 363.3259 Specific targets of terrorism Source: New and changed entries (Nov. 2005)
Political updates 971 *Canada 971.07 2000- 971.071 Later portion … of Jean Chrétien, 2000-2003 971.072 Prime ministership of Paul Martin, 2003-2006 971.073 Prime ministership of Stephen Harper, 2006- Source: WebDewey
In the news • 363.3494 Social problems and services related to Tsunamis as disasters Source: New and changed entries (Nov. 2005; Apr. 2008); WebDewey
Modern concepts & terminology Digital microcomputers→ 004 Data processing→ Personal computers 004 Computer science Class here data processing… 1 2 Source: New and changed entries (Nov. 2008) 1
From “including” to new number • Crohn disease (part of class here note) • Asperger syndrome • Low-cholesterol diet* • Sodium-reduced diet* *For information on diet-related changes, see the blog post “Diets for health” http://ddc.typepad.com/025431/2009/11/diets-for-health.html Source: New and changed entries (Sept. 2004; Oct. 2004; Oct./Nov. 2009)
Comprehensive/Interdisciplinary works • 379.11 Support of public education • Class here financial support; comprehensive works on financial support of education • 613.71 Exercise and sports activities • Class here comprehensive works on care of physique and form [formerly 646.75 ]; interdisciplinary works on aerobic exercise • 362.19888 Abortion services • Class here interdisciplinary works [formerly 363.46 ] • 663.2 Wine • Class here grape wine, comprehensive works on white and red wine, comprehensive works on specific white and red wines Sources: New and changed entries (Feb. 2005; Sept. 2007; Feb. 2008; Mar. 2008)
Splitting concepts • Religious and political aspects of Islam • Clarified scope of pediatrics and adolescent medicine • Many changes to Ethnic and language groups in Tables 5 & 6
Religious & political aspects of Islam 320.557 Islamic fundamentalism 297.09 Historical, geographic, persons treatment Class here comprehensive religious works on religious aspects of Islamic fundamentalism. Class political aspects of Islam in 320
Religious & political aspects of Islam 320.557 Islamic ideologies Class here Islamic fundamentalism, Islamism 297.09 Historical, geographic, persons treatment Class here religious aspects of Islamic fundamentalism. Class political aspects of Islam, of Islamic fundamentalism in 320 Source: New and changed entries (Mar. 2004)
Pediatrics vs. adolescent medicine 615.5 Therapeutics 615.5083 Young people Do not use for therapeutics for infants and children up to puberty, comprehensive works on child and adolescent therapeutics ; class in 615.542 615.50835 Young people twelve to twenty Do not use for therapeutics for young people twelve to twenty who have not reached puberty ; class in 615.542 Class here therapeutics for adolescents 615.542 Pediatric therapeutics Class here comprehensive works on child and adolescent therapeutics Source: New and changed entries (May 2009)
Ethnic and language groups example • Table 5 Ethic & National Groups --9182 Serbs, Montenegrins, Croats, Bosnian Muslims --9182 Serbs and Montenegrins --9183 Croats and Bosnians --91839 Bosnians Class here peoples who speak, or whose ancestors spoke, Bosnian; Bosniaks; Bosnian Muslims; people of Bosnia and Hercegovina as a national group For citizens of Bosnia and Hercegovina of other ethnic groups, see the ethnic group, e.g. Croats --9183049742 Source: New and changed entries (Dec. 2004)
Geographic areas • Example revisions: • Åland Islands, Finland received class here note • Portugal expanded and revised, replacing 18 entries • Reworked Indonesia • Moved things around in Sweden, Belgium Source: New and changed entries (May 2005; July 2006; Aug. 2006; June 2008) 3
Looking forward: what changes are coming Proposed changes: to education to music to persons to WebDewey
370 Education • Goal: “to make the schedule a more useful general framework for the organization of education in a global context” Source: Discussion paper , p. 1 ( “370 Education: Primary subjects and levels of education “ Jan. 2010)
Interdisciplinary approach to knowledge 372.3 Knowledge, computer science, library and information sciences, science, technology Including discussion of ideas from many fields, interdisciplinary approach to knowledge 372.19 Elementary education in subject areas 372.3 Computers, science, technology, health
Home and family management; Social skills 372.8 Other studies 372.82 Home economics 372.37 Personal health and safety; social skills Including comprehensive works on home and family management. Class here life skills 372.374 Social skills Class here family life, interpersonal relationships
Language arts (372.6) New note: 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
Language arts 372.65 Foreign languages and bilingual instruction 372.65 Foreign, official, second languages; bilingual instruction Languages other than the language given preference in 372.6 Subdivisions are added for all topics in heading together, for foreign languages alone, for official languages alone, for second languages alone
Elementary mathematics 372.7 Mathematics Including measurement 372.71 Algebra 372.72 Arithmetic Class here numeracy 372.76 Geometry 372.79 Probabilities and statistical mathematics
Civics and Social studies 372.83 Social studies 372.832 Civics (Citizenship) 372.83 Civics (Citizenship) 372.89 History and geography Class here comprehensive works on social studies; civilization
Levels of education 372 Primary education (Elementary education) 372.21 Pre-primary education 372.241 Lower level Grades 1-3 372.242 Intermediate level Grades 4-6 (372.243 Upper level) Optional lower secondary education
Levels of education 373 Secondary education 373.236 Lower level Grades above 6 372.248 Upper level Grades 10-12 378 Higher education (Tertiary education)
780 Music Goal: address difficulties in the classification of contemporary music Source: Discussion paper “Contemporary styles of music” (Mar. 2009)
Folk or Pop? : new criteria 781.62 Folk Music Music originating within and associated with an ethnic or national group • Popular music that fits this scope note should be classed in 781.62 unless there is already a number established (e.g. reggae) • Manual entry: if in doubt, prefer 781.62
Hybrid styles • Use the class-with-the-last number policy • Addition of a new subdivision (17) to express a second style at 781.63-781.69 • New number 781.657 Hybrid styles E.g. folk-rock 781.661762 781.66 (rock)+ 17 (hybrid) + 62 (folk) 4 Jackson Browne
Popular styles • Instead of providing a multitude of new numbers or notes for styles not yet provided for, create relative index entries to guide the classifier: • Cajun music 781.62410763 • Zydeco music 781.62410763 • Disco music 781.64 • Latin pop 781.6268
Persons Terminology changes: T1-08 Kinds of persons → T1-092 Persons treatment → 305 Social groups → Sources: Discussion paper & blog post (Aug. 2008); presentation by Julianne Beall at ILFA 2008 Groups of people Biography Groups of people
T1—08 New developments Current: T1—081 Men T1—082 Women Proposed: T1—081 People by gender or sex Class here gender identity, gender role, sex role T1—0811 Men T1—082 Women
T1—08 New developments T1—08656 People in partnerships and unions Class here people in common-law marriages, civil unions, de facto relationships, domestic partnerships, registered partnerships, unmarried couples living together T1—0867 Transgender and intersex people
WebDewey re-design Goals • Modern interface • Personalization • Local links Source: presentation by Libbie Crawford at ALA Midwinter, Jan. 2010. Images used with permission.
Dewey projects Classifying photos Dewey.info BISAC-DDC mappings Classify
Classifying photographs • Assign DDC to photographs in the World Digital Library (WDL) • The captions from the Dewey summaries are shown as topics in the WDL • Users can browse by topic • Topics are multilingual Source: presentation by Julianne Beall at IFLA, 2009
Topics = DDC Summaries 200 Religion 280 Christian denominations 281 Early church & Eastern churches 700 Arts & recreation 720 Architecture 726 Buildings for religious purposes • Cathedral of St. Sophia (1568-70), with Belltower (1869-70), Southeast View, Vologda, Russia • Photographer: Brumfield, William Craft (1944-)
Multilingual topics Change language option:
Dewey.info • Present DDC data in a reusable way • Linked data for the semantic web • For machines • For humans • Start with the DDC summaries • Identify each class with a URI • Potential applications: • Tell your users what “x” number means • Point to broader/narrower terms • Links for multilingual translation • Link to other vocabularies • Link Table 2 to FAST headings/Geonames Source: presentation by Michael Panzer at ALA Midwinter, Jan. 2010
Mapping DDC numbers to BISAC subject headings 083 04 372.7 ‡2 22 ‡5 OCoLC-D 083 04 510.712 ‡2 22 ‡5 OCoLC-D 150 EDUCATION ‡x Teaching Methods & Materials ‡x Mathematics Source: presentation by Joan S. Mitchell at ALA Midwinter, Jan. 2010
Classify (http://classify.oclc.org/classify2/) • Recommends classification based on FRBRization of WorldCat records
Questions? Contact ahitchen@uwaterloo.ca A good place for Dewey news, tips & tricks is the Dewey blog (edited by Jonathan Furner, assistant editor of the DDC, with contributions from other members of the Dewey editorial team): http://ddc.typepad.com/