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Comparing DDC and LCC shelf arrangement

Comparing DDC and LCC shelf arrangement. Julianne Beall Assistant Editor, DDC Library of Congress July 4, 2006 Vienna. Outline. Notation Differences in arrangement of material Practical considerations. Main classes and subclasses. DDC: 10 main classes Each with up to 10 subclasses

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Comparing DDC and LCC shelf arrangement

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  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 Forestry—Sylviculture—Natural history of forest trees—Description, 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  

  11. 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

  12. 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 • 634.973+[583]766= 634.973766 • 583.766                 Eucalyptus (Gum trees)

  14. 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

  15. 634.975 Gymnosperms (2) • 634.9755 †Cypresses • 634.9756 †Cedars • 634.9757 †Larches • 634.9758 †Sequoias † Add as instructed under 634.97

  16. 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 • 634.9759+[585]3=634.97593 • 585.3      Podocarpaceae, Araucariaceae, Cephalotaxaceae (plum-yew family)   Including Huon pine, kauris (dammar pines) . . . .

  17. Example of DDC and LCC class numbers • Genetic variation in seedling progeny of ponderosa pine provenances • DDC: 634.97517 • LCC: SD397.P6115

  18. 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.

  20. 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

  21. 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 theenvironment (GE)

  24. DDC in 300s corresponding to LCC G (3) • 390 Customs, etiquette & folklore (GT) • 398 Folklore (GR)

  25. 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)

  27. 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)

  28. DDC in 900s corresponding to LCC G • 900      History & geography • 910              Geography and travel (G) • 910.02                  The earth (Physicalgeography) (GB)

  29. 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

  30. 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

  31. 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 poetry—1945-1990 • 832.914 German drama—1945-1990 • 833.914 German fiction—1945-1990

  32. 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 author’s works are classed with the author’s 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

  34. 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; here’s one. • Example: Böll, Heinrich, 1917- • 833.914.B6333z 1963 Der Zug war pünktlich

  35. 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 literature—Individual authors or works—1860/70-1960—B-Bz—Böll, Heinrich, 1917- • PT2603.O394 • PT2603.O394Z45 1973 Der Zug war pünktlich

  37. 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

  38. 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

  39. 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

  42. 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/

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