Prasad, H NMukherjee, Bhaskar2010-05-212010-05-212007-02-08978-81-902079-4-2http://hdl.handle.net/1944/1442Discusses the very term Open Access (OA) as given by Budapest Open Access Initiative, Public Library of Science. Mentions the development of OA and the role of various global initiatives in this regard. Highlights the various types of Open access that are predominantly known. Critically discussed the existing models of OA and proposed a functional model which includes all important issues like peer-reviewing, archiving as well as finance.enOpen AccessOA, Models of OATypes of OAArticle