OAI and OA-X. Henk Ellermann is on the team with folks from KNAW and DARE to extend the OAI protocol. He's written a brief introduction to the extended protocol, which allows for the exchange of object files, not just metadata. This is the key to supporting full-text searching, presenting thumbnails of image files, and creating new data providers that pull selected objects from other providers. It also standardizes the ingest procedure, which could be used to automate journal submissions or harvest papers from personal web sites for an institutional repository. [Open Access News]
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