The OAI: overview and historical context OAI Open Meeting – Washington DC – January 23 rd 2001...

the OAI: overview and historical context

OAI Open Meeting – Washington DC – January 23rd 2001

Herbert Van de Sompel & Carl LagozeCornell University -- Computer Science

herbert van de sompel

The Open Archives Initiative 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

OAI origin


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

e-print

e-print accessibility

e-print

e-print

e-print


e-print

preprint solutions


• Santa Fe meeting: improve accessibility of

preprints

• by improving searchability

• via the provision of an interoperability spec

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

OAMS

XML reply

HTTP based

Gentelmen’s agreement

metadata harvesting


metadata

e-print

e-print

e-print

e-print

e-print

metadata harvesting


metadata

AuthorTitleAbstractIdentifer

e-print

e-print

e-print

e-print

e-print

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, ...

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

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

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

Dublin Core

HTTP based

Community specific

Reply • XML Schema

• Self contained

low-barrier interop umbrella


metadata

OPAC

image

FTXT

A&I

e-print

low-barrier interop umbrella


metadata

OPAC

image

FTXT

A&I

e-print

AuthorTitleAbstractIdentifer

OAI harvesting tools


DatestampIdentifierSet

Records

repos i tory

harves ter

service provider data provider

OAI harvesting tools


Supporting protocol requests:• Identify• ListMetadataFormats• ListSets

Harvesting protocol requests:• ListRecords• ListIdentifiers• GetRecord

repos i tory

harves ter

service provider data provider

modes of running OAI 1.0 repository


• mode 0:

• no registration of repository in the OAI registry



• mode 1:

• registration of repository in public OAI registry

[includes validation of replies]existence of the repository is visible



• mode 2:

• registration of repository in public OAI registry

• usage of the OAI format for identifiers

resolver for OAI formated identifiers

existence of the repository is visible

tools to support OAI implementation


• Hussein’s Repository explorer

• XSV Schema Validator

• XML Spy

• the OAI comformance tester [soon]

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: [email protected]

• freeze specifications for 12 -18 months:

• stable for experimentation; not definitive• minimize risk for early adopters

• maximize chances for future interoperability across communities

revision of specifications


The Open Archives Initiative develops and promotes interoperability standards that aim to facilitate the efficient dissemination of content.

new OAI mission statement


The Open Archives Initiative has its roots in an effort to enhance access to e-print archives as a means of increasing the availability of scholarly communication. Continued support of this work remains a cornerstone of the Open Archives program.



The fundamental technological framework and standards that are developing to support this work are, however, independent of the both the type of content offered and the economic mechanisms surrounding that content, and promise to have much broader relevance in opening up access to a range of digital materials.

[...]



http://www.openarchives.org

[email protected]

the oai-alpha test

OAI Open Meeting – Washington DC – January 23rd 2001

Herbert Van de Sompel & Carl LagozeCornell University -- Computer Science

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

• 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



• 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



• service providers:• Repository explorer -- Virginia Tech• ARC service -- Old Dominion U



Credits: oai-alpha group for a truly incredibly good job.

Special thanks: Hussein Suleman, Michael Nelson, Simeon Warner for playing a distinct enabling role.

http://www.openarchives.org

[email protected]

The OAI: overview and historical context OAI Open Meeting – Washington DC – January 23 rd 2001...

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