OAI-PMH (Open Archives Initiative Protocol for Metadata Harvesting) is a protocol developed by the Open Archives Initiative. It is used to harvest (or collect) the metadata descriptions of the records in an archive so that services can be built using metadata from many archives. An implementation of OAI-PMH must support representing metadata in Dublin Core, but may also support additional representations.
The protocol is usually just referred to as the OAI Protocol.
OAI-PMH uses XML over HTTP. The current version is 2.0, updated in 2008.
Read more about Open Archives Initiative Protocol For Metadata Harvesting: History, OAI Registries, Uses, Software, Archives, Workshops
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