TEL-ME-MOR/M-CAST Seminar on Subject Access The Virtual International Authority File (VIAF)

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

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

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

4. But no common international vocabulary! 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 Different Same Name People Prague 24 November 2006

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

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

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

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

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

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

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

16. Language LC Control Number LC Classification Title Publisher Place of Publication Date of Publication Material Type Authors 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. Prague 24 November 2006

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

18. Enhanced Authority Record Prague 24 November 2006

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

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

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

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

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

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

27. The Virtual International Authority File Prague 24 November 2006

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