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The Library of Congress’ Genre/Form Terms: A Faceted System

The Library of Congress’ Genre/Form Terms: A Faceted System. Presentation for ACIG by Janis L. Young Policy and Standards Division Library of Congress jayo@loc.gov. Project Status. Two projects out of development stages Moving images Recorded sound Four projects in active development

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The Library of Congress’ Genre/Form Terms: A Faceted System

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  1. The Library of Congress’Genre/Form Terms:A Faceted System Presentation for ACIG by Janis L. Young Policy and Standards DivisionLibrary of Congress jayo@loc.gov

  2. Project Status • Two projects out of development stages • Moving images • Recorded sound • Four projects in active development • Cartography • Law • Music • Religion • One more project planned • Literature

  3. Project Status Cartography project • Approximately 65 genre/form terms approved on May 19th • Existing inverted cartographic subject headings revised where necessary • Revisions to form subdivisions will be approved August 18th • LC implementation to follow on September 1st

  4. Project Status Law project • PSD continues to work with the American Association of Law Libraries • Nearing agreement on the terms that will be formally proposed • Expect law genre/form terms to be approved before the end of the year • LC implementation to follow in early 2011

  5. Project Status Law project • LC and AALL are conferring with the Jewish Theological Seminary and the Association of Jewish Libraries Cataloging Committee to develop a list of Jewish legal terms • Islamic, Catholic, Orthodox, and Protestant legal traditions?

  6. Project Status Music project • PSD continues to collaborate with the Music Library Association • Vetting lists of terms to determine which are forms and genres • Have agreed on approximately 1,000 genre/form terms to date • Developing a list of mediums of performance and discussing where to place them in MARC bibliographic records

  7. Project Status Religion project • PSD is collaborating with the American Theological Library Association • ATLA is coordinating with other associations organized around religion • Kick-off roundtable at ATLA on June 17th

  8. Formal Separation ofGenre/Form Thesaurus from LCSH • Title: Library of Congress Genre/Form Terms for Library and Archival Materials (LCGFT) • Developing a separate manual • Exploring whether LCGFT should be removed from Supplementary Vocabularies volume of LCSH • MARC source code: lcgft • New LCCN prefix: gf • Timeline: Late 2010 or early 2011

  9. Formal Separation ofGenre/Form Thesaurus from LCSH MARC coding • Authority records • 008/11: z (“Other”) • 040$f: lcgft • Bibliographic records • 655 #7 $a [Term.] $2 lcgft

  10. Formal Separation ofGenre/Form Thesaurus from LCSH TODAY Authority record 008/11: a 040 $a DLC $b eng $c DLC 155 $a Topographic maps 455 $a Topographical maps 555 $w g $a Maps Bibliographic record 655 #0 $a Topographic maps. TO COME Authority record 008/11: z 040 $a DLC $b eng $c DLC $f lcgft 155 $a Topographic maps 455 $a Topographical maps 555 $w g $a Maps Bibliographic record 655 #7 $a Topographic maps. $2 lcgft

  11. Formal Separation ofGenre/Form Thesaurus from LCSH • Second indicator “0” of 6xx block is defined for LCSH • PSD chose not to request that it be redefined in the 655 field • No other source indicator has two different meanings • Legacy data • Libraries continue to use LCSH in 655 field • Validation software must be able to match an assigned heading to a particular thesaurus • Second indicator “8” is defined locally by OCLC for the Sears List of Subject Headings for all 6xx fields except 655

  12. A FACETED SYSTEM

  13. Faceting: Coding single terms or phrases, representing individual concepts, separately in the bibliographic record

  14. A Faceted System • One concept per field provides predictability Animated western films Western animated films Children’s educational television programs Educational television programs, Juvenile Educational television programs—Juvenile works Juvenile educational television programs Western films Animated films Children’s television programs Educational television programs

  15. A Faceted System • Data is not repeated within a record • Descriptive elements, subject headings, genre/form terms all play their own roles • Individual pieces of data work together to provide a complete understanding of the work

  16. A Faceted System • If a characteristic is present in the descriptive portion of the record, it probably isn’t part of the genre or form, e.g., • Language: recorded in 008, 041, 130, 240, 546 • Place of production: recorded in 008, 257, 260 • Uniform title: recorded in 130, 240

  17. A Faceted System 041 1# $a ger $h eng 043 $a e-gx--- 245 00 $a Goodbye Lenin! $h [videorecording] / $c X Verleih präsentiert eine X Filme Creative Pool produktion in co-produktion mit dem WestDeutschen Rundfunk. 257 $a Germany. $2 naf 300 $a 1 videodisc (ca. 121 min.) : $b sd., col. ; $c 4 3/4 in. 546 $a In German with optional English subtitles. 650 #0 $a Mothers and sons $v Drama. • #0 $a Germany $x History $y Unification, 1990 $v Drama. Comedy films Feature films--Germany. Feature films German films

  18. A Faceted System 041 1# $a ger $h eng 043 $a e-gx--- 245 00 $a Goodbye Lenin! $h [videorecording] / $c X Verleih präsentiert eine X Filme Creative Pool produktion in co-produktion mit dem WestDeutschen Rundfunk. 257 $a Germany. $2 naf 300 $a 1 videodisc (ca. 121 min.) : $b sd., col. ; $c 4 3/4 in. 546 $a In German with optional English subtitles. 650 #0 $a Mothers and sons $v Drama. • #0 $a Germany $x History $y Unification, 1990 $v Drama. • #0 $a Comedy films. 655 #0 $a Feature films.

  19. A Faceted System Genre/form terms and subject headings are symbiotic; each elaborates on the other 650 #0 $a World War, 1939-1945 $v Drama. 655 #0 $a War films. 655 #0 $a Comedy films. 651 #0 $a Washington (D.C.) $v Maps. 655 #0 $a Topographic maps.

  20. A Faceted System • Intellectual overlap between subject headings and some genre/form terms • War film vs. Documentary film about war • What happens when subject matter creeps into LCGFT? 150 $a Batman (Fictitious character) 155 $a Batman films

  21. Future Systems • Will retain ability to browse LCSH and LCGFT headings • Each facet will be provided as a search limit or expansion • Predictability in coding and format of genre/form terms will assist in computer parsing

  22. Future Systems

  23. Future Systems • “Refine my results” in University of Minnesota Libraries’ MNCAT Plus Availability Library Material type Other libraries Author/creator Genre/form Subject Call number group Date Language

  24. Future Systems • Additional facets possible • Country of production • Medium of performance • Carrier

  25. Future Systems • Walking a tightrope • Maintain usable data for today, while creating data for tomorrow • The chicken or the egg?

  26. Questions?

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