The document describes the SFX framework for context-sensitive reference linking, which allows a user accessing a citation to be redirected to an appropriate full text or service based on their context. The framework uses an OpenURL standard to pass citation metadata from a link source to a parsing server, which then sends the metadata to a linking server to determine the most relevant services and create dynamic links to them based on the user's access and the available library collections and resources. The goal is to provide context-sensitive services to users based on their access and the cited item metadata rather than relying on pre-computed static links.

1. The SFX Framework for Context-Sensitive Reference Linking herbert van de sompel acknowledgements patrick hochstenbach the LWW team of the LANL Research Library the Council on Library and Information Resources the Digital Library Federation the Belgian National Science Foundation American Physical Society ; Ex Libris ; SilverPlatter ; Wiley CNI Meeting, Washington DC March 28th 2000

2. generic reference linking problem given : how : the information in a standard citation does one get to the thing to which the citation refers?

3. Full text

4. given : the extended services problem how : the information in a standard citation does one get to the thing to which the citation refers? bibliographic metadata does one create relevant services for it?

5. Full text Ulrich’s PubMed citation databases

6. Who is Who Books in Print Amazon.com

7. Full text Ulrich’s citation databases Medline

8. specific reference linking problem given : how : the information in a citation to a journal article how does a user get to an appropriate copy of the article

9. appropriate full text

10. given : how : the information in a citation to a journal article how does a user get to an appropriate copy of the article bibliographic metadata does a user get appropriate services for it? the context-sensitive services problem

11. appropriate full text IOP Inspec appropriate Inspec local holdings appropriate citation databases

12. link-source context-sensitive extended services redirection component service component metadata selective resolution system

13. link-source context-sensitive extended services a. allow OpenURL server b. deliver linking server metadata parsing server

14. allow context-sensitive services search result I allow ) OpenURL :- server

15. 1. implement a technique to make the system understand the difference between a user that has access to a service component and one that does not allow context-sensitive services

16. 1. CookiePusher, DLF certificate, ... allow context-sensitive services

17. 2. for users with access to a service component, provide an OpenURL for each metadata-object allow context-sensitive services

18. 2. OpenURL: target = service component content = elements of the metadata, in a public syntax allow context-sensitive services

19. OpenURL examples record = AU Smith, Paul ISSN 1234-5678 VOLUME 12 ISSUE 3 PAGES 1-8 PY 1998 DBASE ERL-BIOSIS DBASE-AN 987641 SFX server = http://sfx.aaa.edu/menu

20. OpenURL = http://sfx.aaa.edu/menu? type=article & ISSN=1234-5678 & volume=12 & issue=3 & startPage=1 & endPage=8 & year=1998 & authLast=Smith & authFirst=Paul OpenURL = http://sfx.aaa.edu/menu? serviceID=ERL:BX & privateID=987641 OpenURL examples

21. link = http://dx.doi.org/ 10.1000/6382-1 OpenURL examples OpenURL = http://sfx.aaa.edu/menu? ID=doi:10.1000/6382-1 SFX server = http://sfx.aaa.edu/menu

22. link = http://www.nih.gov/Entrez/query? uid=95259660 &form=6&db=m&Dopt=r OpenURL examples OpenURL = http://sfx.aaa.edu/menu? ID=pmid:95259660 SFX server = http://sfx.aaa.edu/menu

23. SFX parsing server

24. ) SFX parsing server bring the metadata for which services are requested to the SFX linking server :- search result I allow server OpenURL DOI-X fetch )

25. 1. read the OpenURL 2. collect object-metadata: from the OpenURL via fetch from resource 3. augment object-metadata SFX parsing server

26. evaluate metadata SFX linking server given the metadata & given the digital library collection, which services are relevant? metadata metadata extended services

27. a fully dynamic approach no pre-computation on-the-fly decision making about relevance of services on-the-fly creation of service “links” SFX linking server

28. definition of potential services information about the local collection rules supporting a decision on the relevance of services SFX linking server

29. BIOSIS arXiv APS/PROLA Inspec Compendex SOURCES Medline Inspec Springer Sci Cit Bas OPAC TARGETS holdings abstract full_text cited_author SERVICES OBJECTS 1234-5678 3456-8765 9876-4321 2389-6734 THRESHOLDS

30. DEMO Read about the SFX framework in D-Lib Contact Ex Libris: [email_address] [email_address] OpenURL syntax to be announced on RefLink & http://www.sfxit.com

31. QUESTIONS

32. not a linking service link-from solutions depending on the system linked into link-to solutions depending on the system from which links come A server B server C server

33. a linking service link-from solution for each systems, preferably the same for all link-to solutions for each system A server B server C server

34. server raw record parsed record identifier link bundle I client II III IV V VI VII VIII A SFX base procedure link URL A SFX