Open Archives Initiative

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The Open Archives Initiative (OAI) is an organization to develop and apply technical interoperability standards for archives to share catalog information (metadata).[1] It attempts to build a "low-barrier interoperability framework" for archives (institutional repositories) containing digital content (digital libraries). It allows people (service providers) to harvest metadata (from data providers). This metadata is used to provide "value-added services", often by combining different data sets.

OAI has been involved in developing a technological framework and interoperability standards for enhancing access to eprint archives, which make scholarly communications like academic journals available, associated with the open access publishing movement. The relevant technology and standards are applicable beyond scholarly publishing.

The OAI technical infrastructure, specified in the Protocol for Metadata Harvesting (OAI-PMH) version 2.0, defines a mechanism for data providers to expose their metadata. This protocol mandates that individual archives map their metadata to the Dublin Core, a common metadata set for this purpose. OAI standards allow a common way to provide content, and part of those standards is that the content has metadata that describes the items in Dublin Core format. Object Reuse and Exchange (OAI-ORE) defines standards for the description and exchange of aggregations of web resources.

Funding for the initiative comes from the Andrew W. Mellon Foundation, Coalition for Networked Information (CNI), Digital Library Federation (DLF), National Science Foundation (NSF), the Alfred P. Sloan Foundation, and other organizations.[1]

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