An open-access repository or open archive is a digital platform that holds research output and provides free, immediate and permanent access to research results for anyone to use, download and distribute. To facilitate open access such repositories must be interoperable according to the Open Archives Initiative Protocol for Metadata Harvesting (OAI-PMH). Search engines harvest the content of open access repositories, constructing a database of worldwide, free of charge available research.
As opposed to a simple institutional repository or disciplinary repository, open-access repositories provide free access to research for users outside the institutional community and are one of the recommended ways to achieve the open access vision described in the Budapest Open Access Initiative definition of open access. This is sometimes referred to as the self-archiving or "green" route to open access.
The benefits of open-access repositories, as opposed to conventional digital institutional repositories, are:
- Opening up outputs of the institution to a worldwide audience;
- Maximizing the visibility and impact of these outputs as a result;
- Showcasing the institution to interested constituencies – prospective staff, prospective students and other stakeholders;
- Collecting and curating digital output;
- Managing and measuring research and teaching activities;
- Providing a workspace for work-in-progress, and for collaborative or large-scale projects;
- Enabling and encouraging interdisciplinary approaches to research;
- Facilitating the development and sharing of digital teaching materials and aids, and
- Supporting student endeavours, providing access to theses and dissertations and a location for the development of e-portfolios.
- COnnecting REpositories (CORE)
- Current research information system
- Digital library
- Digital Assets Repository – at Bibliotheca Alexandrina in Egypt
- Library publishing
- List of repositories
- Open-access archives
- Open access around the world
- Jacobs, Neil (2006). Open Access: Key Strategic, Technical and Economic Aspects. Elsevier. p. 11. ISBN 9781843342038.
- Swan, Alma. "Open Access institutional repositories: A Briefing Paper (2009)" (PDF). Open Scholarship. Retrieved 24 September 2013.
- "OpenDOAR Chart - Usage%20of%20Open%20Access%20Repository%20Software%20-%20Worldwide". OpenDOAR. Archived from the original on March 25, 2016. Retrieved 2016-05-15.
- Peter Suber (ed.). "(Repositories)". Open Access Tracking Project. Harvard University. OCLC 1040261573.
News and comment from the worldwide movement for open access to research