Comparing DDC and LCC shelf arrangement

1
Comparing DDC and LCC shelf arrangement

• Julianne Beall
• Assistant Editor, DDC
• Library of Congress
• July 4, 2006
• Vienna

2
Outline

• Notation
• Differences in arrangement of material
• Practical considerations

3
Main classes and subclasses

• DDC 10 main classes
• Each with up to 10 subclasses
• LCC 21 main classes
• Each with up to 20 subclasses

4
DDC class numbers

• Decimal numbers
• Logically, the decimal point belongs at the start
  of the number, though for ease of reading it is
  placed after the third digit
• Only rare, optional recommendations to subarrange
  alphabetically, e.g., for name or make of
  specific named passenger automobiles

5
LCC class numbers

• 1-3 letters
• Followed by whole numbers 1-9999
• Followed in many cases by decimal extensions
• Followed in many cases by subject Cutter numbers

6
Abridgment

• DDC class numbers can be abridged at many levels
  to fit different sized collections
• LCC notation cannot easily be abridged (except to
  cut back to the initial 1-3 letters)

7
DDC and book numbers

• Methods of subarranging alphabetically by author
  are not part of DDC proper
• Many different methods are used by Dewey
  libraries no one method is prescribed

8
LCC and book numbers

• A specific kind of Cutter number is prescribed
  for subarranging alphabetically by author

9
LCC subject Cutter lists example

• SD397.A-SD397.Z ForestrySylvicultureNatural
  history of forest treesDescription, value, and
  culture of individual species or groups, A-Z . .
  . .
• SD397.M3 Maple
• Maple, Sugar see SD397.S775
• SD397.M4 Mesquite
• Metasequoia glyptostroboides see SD397.D37

10
LCC subject Cutter lists example (2)

• SD397.M65 Mopane
• SD397.M84 Mulanje cedar
• SD397.P6112 Pinus patula
• SD397.P61124 Pinus pinea. Italian stone
  pine
• SD397.P6114 Pinyon pines
• SD397.P6115 Ponderosa pine  

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DDC classified arrangement of kinds of trees in
forestry

• 630 Agriculture
• 634 Orchards, fruits, forestry
  
• 634.9 Forestry
• 634.97 Kinds of trees
  
• 634.972
  Dicotyledons
• 634.973 Other
  dicotyledons
• 634.974
  Monocotyledons
• 634.975 Gymnosperms
  

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634.972  Dicotyledons

• 634.9721 Oaks
• 634.9722 Maples
• 634.9723 Poplars
• 634.9724 Chestnuts
• 634.9725 Beeches
• 634.9726 Birches
• 634.9727 Lindens
• 634.9728 Elms
• Add as instructed under 634.97

13
634.973  Other dicotyledons

• Add to base number 634.973 the numbers following
  583 in 583.2-583.9 , e.g., eucalyptus 634.973766
• 634.973583766 634.973766
• 583.766                 Eucalyptus (Gum trees)

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634.975 Gymnosperms (1)

• 634.9751-634.9758 Coniferous
  trees
• 634.9751 Pines
• 634.9752 Spruces
• 634.9753 Hemlocks
• 634.9754 Firs
• Add as instructed under 634.97

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634.975 Gymnosperms (2)

• 634.9755 Cypresses
• 634.9756 Cedars
• 634.9757 Larches
• 634.9758 Sequoias
• Add as instructed under 634.97

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634.9759 Other gymnosperms

• Add to base number 634.9759 the numbers following
  585 in 585.2-585.9 , e.g., kauris (dammar pines)
  634.97593
• 634.97595853634.97593
• 585.3      Podocarpaceae, Araucariaceae,
  Cephalotaxaceae (plum-yew family)  
• Including Huon pine, kauris (dammar pines) . . .
  .

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Example of DDC and LCC class numbers

• Genetic variation in seedling progeny of
  ponderosa pine provenances
• DDC 634.97517
• LCC SD397.P6115

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More on DDC example

• 634.9751 Pines 7 Varieties and kinds from add
  table at 634.97 634.97517
• Libraries that have few books in this area can
  drop the final 7 and put all the books about
  pines together
• The abridged DDC stops at 634.9 Forestry

19
More differences in arrangement of material

• There are so many differences that I cannot
  possibly list them all I can only give some
  examples.

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CLASS G - GEOGRAPHY. ANTHROPOLOGY. RECREATION
(1)

• G1-9980 Geography
• GA1-1776 Mathematical geography. Cartography
• GB3-5030 Physical geography
• GC1-1581 Oceanography
• GE1-350 Environmental sciences

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CLASS G - GEOGRAPHY. ANTHROPOLOGY. RECREATION
(2)

• GF1-900 Human ecology. Anthropogeography
• GN1-890 Anthropology
• GR1-950 Folklore
• GT1-7070 Manners and customs (General)
• GV1-1860 Recreation. Leisure

22
DDC in 300s corresponding to LCC G

• 300 Social sciences
• 301              Sociology and anthropology
  (GN)
• 304 Factors affecting social
  behavior
• 304.2 Human ecology (GF)

23
DDC in 300s corresponding to LCC G (2)

• 330 Economics
• 333 Economics of land and
  energy
• 333.7         Land, recreational and
  wilderness areas, energy
• Class here interdisciplinary works on the
  environment (GE)

24
DDC in 300s corresponding to LCC G (3)

• 390 Customs, etiquette folklore
  (GT)
• 398 Folklore (GR)

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DDC in 500s corresponding to LCC G

• 500 Science
• 520 Astronomy and allied
  sciences
• 526              Mathematical geography
  (GA)
• Class here cartography (GA)

26
DDC in 500s corresponding to LCC G (2)

• 550 Earth sciences geology
• 551 Geology, hydrology,
  meteorology
• 551.4 Geomorphology and
  hydrosphere
• 551.46                      Hydrosphere and
  submarine geology    Oceanography (GC)

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DDC in 700s corresponding to LCC G

• 700 Arts recreation
• 790 Recreational and performing
  arts (GV)
• 790.1                  General kinds of
  recreational activities
• Class here leisure (GV)

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DDC in 900s corresponding to LCC G

• 900      History geography
• 910              Geography and travel (G)
• 910.02                  The earth (Physical
  geography) (GB)

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GV Recreation. Leisure (1)

• 363.14 Hazards in sports and recreation
• 790-790.1 Recreation. . . General kinds of
  recreational activities
• 791.1-791.3 Traveling shows minstrel shows
  circuses
• 791.8  Animal performances

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GV Recreation. Leisure (2)

• 792.62 Dancing
• 792.78-792.8 Theatrical dancing ballet and
  modern dance
• 793-797 Indoor games and amusements athletic and
  outdoor sports and games aquatic and air sports
  
• 799.3 Shooting other than game

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Individual literary authors and works in DDC (1)

• Classed by language, form, and literary period
  no class numbers devoted to specific authors.
  Examples
• 831.914 German poetry1945-1990
• 832.914 German drama1945-1990
• 833.914 German fiction1945-1990

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Individual literary authors and works in DDC (2)

• Individual works by the same author in more than
  one form are separated according to form
• Comprehensive collections of an authors works
  are classed with the authors predominant form,
  if there is a predominant form

33
Individual literary authors and works in DDC (3)

• If there is no predominant form, comprehensive
  works are classed in a special number for
  individual authors not limited to or chiefly
  identifiable with one specific form. Example
• 838.91409 German authors of the period 1945-1990
  not identified with a specific form

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Individual authors and works in DDC (4)

• You can use book numbers to bring together works
  of an author in the same form and editions of a
  work. There are several ways to do it heres
  one.
• Example Böll, Heinrich, 1917-
• 833.914.B6333z 1963
• Der Zug war pünktlich

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Individual literary authors and works in LCC (1)

• LCC has specific class numbers devoted to
  specific authors
• Works in all forms by the author are classed in
  subdivisions of the number

36
Individual literary authors and works in LCC (2)

• Example
• German literatureIndividual authors or
  works1860/70-1960B-BzBöll, Heinrich, 1917-
• PT2603.O394
• PT2603.O394Z45 1973
• Der Zug war pünktlich

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Editions of DDC and LCC

• DDC
• 4 volumes in full edition
• 1 volume abridged edition
• Full and abridged web versions
• LCC
• 41 volumes
• No abridged edition
• Full web version

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Translations

• DDC has been translated into more than thirty
  languages (not all of these are current)
• There is a current German translation of the full
  edition, but no German translation of the
  abridged edition
• There is a web version of the German full edition
• There is no translation of all of LCC
• There are translations of some parts into a few
  languages (e.g., Spanish), but I am not aware of
  any German translation

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Up to date

• Both DDC and LCC are actively being kept up to
  date

40
Users of DDC

• Used by a wide range of sizes and types of
  libraries in 138 countries
• School libraries
• Public libraries
• Special libraries
• College and university libraries

41
Users of LCC

• Primarily large and medium-sized academic and
  research libraries in English-speaking countries
• Some specialized collections that are part of a
  larger general library, e.g., a university law
  library, may be classed in LCC when the rest of
  the collection is not

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A final practical consideration

• What classification is used by the majority of
  the libraries whose records you want to use for
  copy cataloging?

43
Resources and links

• ddc-deutsch
• http//www.ddc-deutsch.de/
• Library of Congress Cataloging Distribution
  Service
• http//www.loc.gov/cds/classif.html
• OCLC Dewey Services
• http//www.oclc.org/dewey/