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Open Archives Initiative Protocol for Metadata Harvesting
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<p>The <a href="/facts/Open_Archives_Initiative/jjjzq7Gc">Open Archives Initiative</a> Protocol for Metadata Harvesting (OAI-PMH) is a protocol developed for <a href="/facts/Data_harvesting/A0hTp1rA">harvesting</a> <a href="/facts/Metadata_(computing)/qt35z79C">metadata</a> descriptions of records in an archive so that services can be built using metadata from many archives. An <a href="/facts/Implementation/IH1KXgP3">implementation</a> of OAI-PMH must support representing metadata in <a href="/facts/Dublin_Core/krf0ert0">Dublin Core</a>, but may also support additional representations. </p><p>The protocol is usually just referred to as the OAI Protocol. </p><p>OAI-PMH uses <a href="/facts/XML/clNgUfWk">XML</a> over <a href="/facts/HTTP/TWtvf7JD">HTTP</a>. Version 2.0 of the protocol was released in 2002; the document was last updated in 2015. It has a <a href="/facts/Creative_Commons_license/6AV3V7UJ">Creative Commons license</a> BY-SA. </p>