n. (abbr. OA)
the principle that access to archival resources should not be restricted unnecessarily
a model of access to created works and data that seeks to eliminate barriers for readers such as subscription fees and physical media, and barriers to reuse such as copyright restrictions and licensing fees
The first sense of open access is often enshrined in open records laws for government records, although it may also refer to the provision of easy access to other records. The second sense is often abbreviated OA, and its focus is on avoiding financial impediments to access such as copyright and access or subscription fees.