1. Prague 24 November 2006 1 TEL-ME-MOR/M-CAST Seminar on Subject Access The Virtual International Authority File (VIAF) Christel Hengel

2. Prague 24 November 2006 2 Functional requirements for authority data FRAD Work Expression Manifestation Item Person Corporate body Family Concept Object Place Event/Time

3. Prague 24 November 2006 3 Vision 1: Common International Functional model Work Expression Manifestation Item Person Corporate body Family Time Work Expression Manifestation Item Person Corporate body Family Concept Object Event/Time Place Creator Title Year Subject

4. Prague 24 November 2006 4 But no common international vocabulary!

5. Prague 24 November 2006 5 Two Different People – One Name Adams, Mike In the PND a golfer In LCNAF an author of a Beatles collector's guide Same Name Different People

6. Prague 24 November 2006 6 One Person – Two Names LCNAF: Morel, Pierre PND: Morellus, Petrus One person Different Names

7. Prague 24 November 2006 7 One person – variant forms of name Чайковский, Пётр Ильич Čajkovskij, Pëtr Il'ič Tschaikowski, Pjotr Iljitsch Tschaikowski, Pjotr I. Csajkovszkij, Péter Tsjaikowski, Pjotr. I. etc.

8. Prague 24 November 2006 8 Vision 2: Virtual International Authority File VIAF Persons (Events) Corporate bodies Families Works Places

9. Prague 24 November 2006 9 Structure of the VIAF LCNAF PND France Spain China Japan Heading and ID number

10. Prague 24 November 2006 10 Search PND LCNAF France Spain China Japan Bibliogr.dataAuthority data VIAF

11. Prague 24 November 2006 11 Project „Virtual International Authority File (VIAF)“ Project partners Library of Congress, German National Library, OCLC Online Computer Library Center Cooperative Agreement August 2003 Proof of viability of the VIAF concept Linking PND and LCNAF records through a Virtual International Authority File

12. Prague 24 November 2006 12 The VIAF Project LCDNB LC bib. recordsDNB bib. records LCNAFPND OCLC Stage 1: Match and Merge of Records Stage 2: Build OAI Server Stage 3: Update Service Stage 4: Ongoing maintenance BVB bib. records

13. Prague 24 November 2006 13 DNB / BVB Records BVB bib. recordsca. 5 Mio. DNB bib. recordsca. 6,5 Mio. PND authority recordsca. 2,7 Mio.

14. Prague 24 November 2006 14 Library of Congress Records Authority records - names of persons ca. 3,8 Mio. Bib. recordsca. 12 Mio.

15. Prague 24 November 2006 15 Stage 1: Match and Merge LC bib. record Person (Author, statement of res- ponsibility, subject heading etc.) All titles e.g. uniform titles, etc. Date and place of publication Language Publisher Subject cataloguing Numbers DNB (BVB) bib. record Person (Author, statement of res- ponsibility, subject heading etc.) all titles e.g. uniform titles, etc. Date and place of publication Language Publisher Subject cataloguing Numbers PND Authority record Müller, Karl Nr. 117604801 LCNAF Authority record Müller, Karl, 1852-1940 No. 92025239 = ▼ =

16. Prague 24 November 2006 16 Mining the Bibliographic Record LDR 00826ccm 2200289 a 4500 1 ocm10025532 5 20031229650847.0 8 840627s1982 nyuuua n eng 10 $a 84758340 40 $a DLC $c DLC 19 $a 17706440 20 $c $2.95 28 22 $a 48418 $b G. Schirmer 45 2 $b d198006 $b d198007 48 $b va01 $b ve01 $a ka01 50 00 $a M1529.3 $b.T 100 1 $a Thomson, Virgil, $d 1896- 245 14 $a The cat : $b duet for soprano and baritone / $c Virgil Thomson ; [words by Jack Larson]. 260 $a New York : $b G. Schirmer, $c c1982. 300 $a 1 score (11 p.) ; $c 31 cm. 500 $a For soprano, baritone, and piano. 650 0 $a Vocal duets with piano. 600 10 $a Larson, Jack $x Musical settings. 700 1 $a Larson, Jack. Authors LC Control Number LC Classification Title Material Type Publisher Place of Publication Language Date of Publication

17. Prague 24 November 2006 17 Enhancing the Authorities Bibliographic Record Derived Authority Record Enhanced Authority

18. Prague 24 November 2006 18 Enhanced Authority Record

19. Prague 24 November 2006 19 Linking Retrospective Files Matching Algorithms Enhanced LCNAF Authorities Enhanced PND Authorities VIAF authorities

20. Prague 24 November 2006 20 VIAF File DNB Names ca. 2,7 Mio. LC Names ca. 4,3 Mio. Common ca. 600.000

21. Prague 24 November 2006 21 Stage 3: Build OAI Server LCNAF DNB/PND OAI Server(s)

22. Prague 24 November 2006 22 Stage 4: Ongoing maintenance VIAF LCNAFPND

23. Prague 24 November 2006 23 Search by VIAF Tschechow Search results Чехов, Антон Павлович Čechov, Anton Pavlovič Čechov, Anton P. Tschechow, Anton P. etc. Čechov

24. Prague 24 November 2006 24 Extensions of the VIAF for personal names for geographic names for corporate bodies for works Adding authority files from all countries

25. Prague 24 November 2006 25 Options Using the VIAF –in mixed databases –in multilingual portals Using the VIAF match and merge methods Linking to the VIAF Transfering the VIAF concept: Making the authority file the backbone of linking all kinds of objects

26. Prague 24 November 2006 26 books images resolver archivalia objects (in museums) articles articles in encyclopedias Persistent Identifier PND Who is Catherine the Great?

27. Prague 24 November 2006 27 The Virtual International Authority File

28. Prague 24 November 2006 28 Thank you for your attention! c.hengel@d-nb.de