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Modifying the LC/NACO file, phase 2

Modifying the LC/NACO file, phase 2. Gary L. Strawn Northwestern University Library mrsmith@northwestern.edu. What’s going on?. Changes needed in LC/NACO Authority File for RDA 2 (later 3) phases Each record only issued once (…) Definitions adjusted as time passed

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Modifying the LC/NACO file, phase 2

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  1. Modifying the LC/NACO file, phase 2 Gary L. Strawn Northwestern University Library mrsmith@northwestern.edu

  2. What’s going on? • Changes needed in LC/NACO Authority File for RDA • 2 (later 3) phases • Each record only issued once (…) • Definitions adjusted as time passed • Documentation: http://files.library.northwestern.edu/public/pccahitg

  3. Phase 1 • Identify records that cannot be used under RDA • Only records that do not also require some change during phase 2 • Changes made ~August 2012 • ~400,000 records changed

  4. Phase 1.5 • Deal with the RDA 7XX fields • Changes made January, 2013 • Most RDA 7XX fields removed • Many became 4XX • Not yet removed if record requires a change during phase 2 • ~15,000 records changed

  5. Phase 2 • Change texts of fields • Re-code changed AACR2 records as RDA • ~400,000 records to be changed • Expected to begin March 4 • 30,000 records per day • Sequential order per LC's copy of the file

  6. Phase 2: examples of changes • Spell out Dept. • Manipulate dates in X00 $d • Spell out or remove O.T. and N.T. • Koran becomes Qur'an • $t Selections becomes $t Works. $k Selections

  7. Phase 2: examples of changes • Replace violoncello with cello • Spell out arr., acc. and unacc. • Move $k Selections • Parentheses around acceptable $c

  8. When record otherwise changed • 046 field • 370, 373, 377, 378 fields • 382-384 fields • 510 for hierarchical superior

  9. Change $d, add 046

  10. Change $d, add 046

  11. Change $d, add 046

  12. Spell out 'Dept.'

  13. Spell out 'Dept.'

  14. Dept. in qualifier

  15. 510 for Hierarchical superior

  16. Qur'an; add 377

  17. Violoncello; add 382-384

  18. O.T./N.T., with revised 430s

  19. O.T./N.T.; add 377

  20. Fancy 377

  21. Move $k 'Selections'

  22. Parentheses around $c

  23. A hidden benefit …

  24. OK for LC/NACO. What else? • Changes needed to local authority records • Many changed 1XX coming in Phase 2 • Changes needed to bibliographic records • RDA headings flipped back to AACR2 • Changes to headings in bib records not covered by authority records

  25. Even more things for bib records • Remove 245 $h • Generate 336-338 • Replace Latin abbreviations • Spell out abbreviations • Deal with “&” in subfield $l • Etc., etc.

  26. LCSH • … $y Colonial period, ca. 1600-1775 • $a Antioquia (Colombia : Dept.) $x History • $a Alexander, $c the Great, $d 356-323 B.C. $y Art • $a Bassoon and violoncello with orchestra • $a Bible. $p O.T. $p Isaiah $v Illustrations

  27. That’s all for now!

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