Open Archives Initiative Protocol for Metadata Harvesting (OAI-PMH)

Open Archives Initiative
United States of America

About

Launched: 2001
Record Updated: Nov 07, 2024
Standard, specification or protocol
The Open Archives Initiative Protocol for Metadata Harvesting (OAI-PMH) is a low-barrier mechanism for repository interoperability. Data Providers are repositories that expose structured metadata via OAI-PMH. Service Providers then make OAI-PMH service requests to harvest that metadata. OAI-PMH is a set of six verbs or services that are invoked within HTTP.

Mission

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

Key Achievements

The Open Archives Initiative coordinated efforts to devise three interoperability specifications: the Protocol for Metadata Harvesting, Object Reuse and Exchange, and ResourceSync. Of these, the Protocol for Metadata Harvesting has been the most successful with global adoption also beyond the target scholarly communication community. Object Reuse and Exchange has been adopted in some data management approaches (e.g. Dataverse) and has served as an inspiration for related work (e.g. Research Objects, RO-Crate). Despite its formal standardization (ANSI/NISO), ResourceSync has been poorly adopted.

Technical Attributes

Maintenance Status

Actively Maintained

Technical Documentation

Implemented

Technical Attribute Statements

Technology Readiness Level

  • Actual system proven in operational environment

Content Licensing

  • Creative commons licenses

Standards

Community Engagement

Community Engagement

Implemented

Community Statements

Community Engagement Activities

  • Mailing lists and discussion forums (including Slack)

Additional Information

Organizational History

In 1999, Paul Ginsparg, Rick Luce, and Herbert Van de Sompel called a meeting in Santa Fe, New Mexico, (https://www.openarchives.org/meetings/SantaFe1999/ups-invitation-ori.htm) to discuss interoperability between e-print servers as a means to promote communication by means of preprints. This meeting (press release at https://www.openarchives.org/news/ups1-press.htm) led to the creation of the "Santa Fe Convention," (https://doi.org/10.1045/february2000-vandesompel-oai) an interface enabling e-print servers to structure and share metadata for their papers with discovery services. Recognizing the broader applicability of these solutions, the Coalition for Networked Information and the Digital Library Federation provided funding to establish the Open Archives Initiative (OAI) secretariat, managed by Van de Sompel and Carl Lagoze. The OAI Protocol for Metadata Harvesting (OAI-PMH) was introduced in 2001, evolving into version 2.0 by June 2002. Subsequently, CERN and the University of Geneva began organizing bi-annual OAI workshops, which have expanded to encompass various aspects of open science. In 2021, the workshop series was renamed the "Geneva Workshop on Innovations in Scholarly Communication," often referred to as "OAI" to honor its origins. (summarized from
https://en.wikipedia.org/wiki/Open_Archives_Initiative_Protocol_for_Metadata_Harvesting ). The Open Archives Initiative launched two more interoperability specification efforts after OAI-PMH: OAI-ORE (2014) and ResourceSync (2017). The core team for all efforts consisted of Carl Lagoze, Michael L. Nelson, Herbert Van de Sompel, and Simeon Warner.

Organizational Structure

Business or Ownership Model

Volunteer community

Full-time Staff

0

Volunteers

1-5

Current Affiliations

Cornell University
Data Archiving Networked Services (DANS)

Funding

Primary Funding Source

  • Contributions