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the OAI: overview and historical context. H erbert V an de S ompel & Carl Lagoze Cornell University -- Computer Science. OAI Open Meeting – Washington DC – January 23 rd 200 1. OAI origin.
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the OAI: overview and historical context Herbert Van de Sompel & Carl Lagoze Cornell University --Computer Science OAI Open Meeting–Washington DC – January 23rd2001
OAI origin The Open ArchivesInitiative has been set up to create a forum to discuss and solve matters of interoperability between preprint solutions, as a way to promote their global acceptance. Paul Ginsparg, Rick Luce & Herbert Van de Sompel herbert van de sompel herbert van de sompel
preprint solutions • attractive building block in ongoing transformation of scholarly communication • interoperability could increase impact of preprints: • amongst preprint solutions • with building blocks that implement other functions of scholarly communication • with the established communication system herbert van de sompel
e-print e-print e-print e-print e-print e-print accessibility herbert van de sompel
e-print e-print e-print e-print e-print e-print accessibility herbert van de sompel
preprint solutions • Santa Fe meeting: improve accessibility of preprints • by improving searchability • via the provision of an interoperability spec herbert van de sompel
Core concepts of Santa Fe convention • low-barrier interoperability • data-provider & service-provider model • metadata harvesting model • shared metadata format and parallel, community-specific metadata formats • acceptable use Dienst subset HTTP based XML reply OAMS Gentelmen’s agreement herbert van de sompel
e-print e-print e-print e-print metadata harvesting metadata e-print herbert van de sompel
e-print e-print e-print e-print Author Title Abstract Identifer metadata harvesting metadata e-print herbert van de sompel
interest from other communities • Digital Library Federation meetings • ~ research library community has many materials • for which they would like to ‘expose’ metadata • OAI San Antonio meeting: • ~ interest from librarians, publishers, others, ... herbert van de sompel
resulting actions: organizational • establish organizational stability for the OAI: • institutional backing from CNI & DLF • steering committee: policy guidance • technical committee: technical specifications • executive group: day to day coordination • workshops: public dissemination, feedback herbert van de sompel
resulting actions: technical • [09/2000] revise specifications to allow adoption beyond preprints: technical committee • [09/2000-01/2001] compile new specifications: editing by Carl and Herbert • [11/2000-01/2001] alpha-test specifications: oai-alpha group • [01/2001] discontinue the Santa Fe Convention • [01/2001] release version 1.0 of the OAI protocol herbert van de sompel
Reply • XML Schema • Self contained core concepts in OAI 1.0 • low-barrier interoperability • data-provider & service-provider model • metadata harvesting model • shared metadata format and parallel, community-specific metadata formats • acceptable use • flexibility OAI 1.0 protocol HTTP based Dublin Core Community specific herbert van de sompel
OPAC image FTXT A&I e-print low-barrier interop umbrella metadata herbert van de sompel
OPAC image FTXT A&I e-print Author Title Abstract Identifer low-barrier interop umbrella metadata herbert van de sompel
repos i tory harves ter OAI harvesting tools service provider data provider Datestamp Identifier Set Records herbert van de sompel
repos i tory harves ter OAI harvesting tools service provider data provider • Supporting protocol requests: • Identify • ListMetadataFormats • ListSets • Harvesting protocol requests: • ListRecords • ListIdentifiers • GetRecord herbert van de sompel
modes of running OAI 1.0 repository • mode 0: • no registration of repository in the OAI registry herbert van de sompel
modes of running OAI 1.0 repository • mode 1: • registration of repository in public OAI registry • [includes validation of replies] existence of the repository is visible herbert van de sompel
modes of running OAI 1.0 repository • mode 2: • registration of repository in public OAI registry • usage of the OAI format for identifiers existence of the repository is visible resolver for OAI formated identifiers herbert van de sompel
tools to support OAI implementation • Hussein’s Repository explorer • XSV Schema Validator • XML Spy • the OAI comformance tester [soon] herbert van de sompel
communication re OAI • lists: subscribe via http://www.openarchives.org • oai-general list [replaces UPS list; UPS- • subscribers will be moved] • oai-implementers list • web: http://www.openarchives.org • FAQ: http://www.openarchives.org/faq.htm • mail: openarchives@openarchives.org herbert van de sompel
revision of specifications • freeze specifications for 12 -18 months: • stable for experimentation; not definitive • minimize risk for early adopters • maximize chances for future interoperability across communities herbert van de sompel
new OAI mission statement The Open Archives Initiative develops and promotes interoperability standards that aim to facilitate the efficientdissemination of content. herbert van de sompel
new OAI mission statement The Open Archives Initiative has its roots in an effort to enhance access to e-print archives as ameans of increasing the availability of scholarly communication. Continued support of this work remains a cornerstone of the Open Archives program. herbert van de sompel
new OAI mission statement The fundamental technological framework and standards that are developing to support this workare, however, independent of the both the type of content offered and the economic mechanisms surrounding that content, andpromise to have much broader relevance in opening up access to a range of digital materials. [...] herbert van de sompel
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the oai-alpha test Herbert Van de Sompel & Carl Lagoze Cornell University --Computer Science OAI Open Meeting–Washington DC – January 23rd2001
alpha test of specs [11/2000-01/2001] • data providers: • arXiv -- Los Alamos • NACA -- NASA • CogPrints -- U Southampton • ETD -- Virginia Tech • Thesis & Dissertations from WorldCat -- OCLC • American Memory -- Library of Congress herbert van de sompel
alpha test of specs [11/2000-01/2001] • data providers: • HeinOnline law journals -- Cornell U • TEI-lite collection -- U Tennessee • STM publisher metadata -- U Illinois • Resource Disovery Network -- UKOLN • Open Language Archives -- U Pennsylvania • Open Video Project -- U Northern Carolina • CIMI herbert van de sompel
alpha test of specs [11/2000-01/2001] • software: • OAI harvesting interface to Ex Libris Aleph 500 Integrated Library System -- Ex Libris • Open-source software capable of creating a merged catalog of metadata harvested from OAI-servers -- OCLC • OAI 1.O compliant eprints.org software -- U Southampton herbert van de sompel
alpha test of specs [11/2000-01/2001] • service providers: • Repository explorer -- Virginia Tech • ARC service -- Old Dominion U herbert van de sompel
Credits: oai-alpha group for a truly incredibly good job. Special thanks: Hussein Suleman, Michael Nelson, Simeon Warner for playing a distinct enabling role.
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