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The SFX Framework for Context-Sensitive Reference Linking. herbert van de sompel. ICOLC Meeting, Orlando April 13th 2000. acknowledgements patrick hochstenbach the LWW team of the LANL Research Library the Council on Library and Information Resources the Digital Library Federation
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The SFX Framework for Context-Sensitive Reference Linking herbert van de sompel ICOLC Meeting, Orlando April 13th 2000 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
generic reference linking problem given : the information in a standard citation how : does one get to the thing to which the citation refers?
the extended services problem given : the information in a standard citation bibliographic metadata how : does one get to the thing to which the citation refers? does one create relevant services for it?
citation databases Full text Ulrich’s PubMed
Who is Who Books in Print Amazon.com
citation databases Ulrich’s Full text Medline
the appropriate copy problem given : the information in a citation to a journal article how : how does a user get to an appropriate copy of the article
the context-sensitive services problem given : the information in a citation to a journal article bibliographic metadata how : how does a user get to an appropriate copy of the article does a user get appropriate services for it?
appropriate citation databases appropriate full text IOP Inspec appropriate Inspec local holdings
redirection component selective resolution system metadata service component link-source context-sensitive extended services
OpenURL a. b. allow parsing server metadata server deliver linking server link-source context-sensitive extended services
openURL OPAC FTXT FTXT A&I institutional service component openURL openURL openURL SFX context-sensitive linking
:- server allow context-sensitive services search ) I allow result OpenURL
allow context-sensitive services 1. CookiePusher, DLF certificate, ... 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 2. for users with access to a service component, provide an OpenURL for each metadata-object 2. OpenURL: target = service component content = elements of the metadata, in a public syntax
OpenURL examples SFX server = http://sfx.aaa.edu/menu record = AU Smith, Paul ISSN 1234-5678 VOLUME 12 ISSUE 3 PAGES 1-8 PY 1998 DBASE ERL-BIOSIS DBASE-AN 987641
OpenURL examples 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 SFX server = http://sfx.aaa.edu/menu link = http://dx.doi.org/10.1000/6382-1 OpenURL = http://sfx.aaa.edu/menu?id=doi:10.1000/6382-1
OpenURL examples SFX server = http://sfx.aaa.edu/menu link = http://www.nih.gov/Entrez/query?uid=95259660&form=6&db=m&Dopt=r OpenURL = http://sfx.aaa.edu/menu?id=pmid:95259660
parsing server metadata service component deliver linking server deliver context-sensitive services
search ) I allow result OpenURL :- server fetch DOI-X SFX parsing server bring the metadata for which services are requested to the SFX linking server )
SFX parsing server 1. read the OpenURL • 2. collect object-metadata: • from the OpenURL • via fetch from resource 3. augment object-metadata
extended services metadata metadata SFX linking server given the metadata & given the digital library collection, which services are relevant? evaluate metadata
SFX linking server • 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 definition of potential services information about the local collection rules supporting a decision on the relevance of services
SOURCES SERVICES TARGETS BIOSIS arXiv APS/PROLA Inspec Compendex Medline Inspec Springer Sci Cit Bas OPAC holdings abstract full_text cited_author OBJECTS 1234-5678 3456-8765 9876-4321 2389-6734 THRESHOLDS
DEMO • Contact Ex Libris: • jenny@exlibris-usa.com • oren@exlibris-usa.com OpenURL syntax to be announced on RefLink & http://www.sfxit.com Read about the SFX framework in D-Lib
link URL A SFX procedure SFX base A client I VI VIII VII link bundle V IV parsed record III raw record II identifier server