•Harvester (client that issues OAI-PMH requests)
•Repository (server that responds to OAI-PMH requests)
–Items (OAI Identifier)
contain metadata about a
resource
•Records (OAI Identifier +
Metadata Prefix)
contain metadata in a specific format
about a resource
•Selective Harvesting
–Sets
–Datestamps
•From and Until Dates