What is “OAI”?
OAI (sometimes written OAI-PMH) is an acronym for the Open Archives Initiative. OAI has established methods and practices for repositories in an effort to keep all intellectual digital objects openly accessible for anyone to study, review, and enjoy. It is common to be told that OAI refers to “Open-Access Initiative”. Digital Commons personnel are developing many OAI tools, including techniques for harvesting objects and metadata and rendering either via the Web.
OAI stands for the Open Archives Initiative. From their FAQ, “the Open Archives Initiative develops and promotes interoperability standards … to facilitate the efficient dissemination of content.” Actually, this question is best answered by reading the answers to relevant question in their FAQ, http://www.openarchives.org/documents/FAQ.