'open access' mean its free availability on the public internet, permitting any users to read, download, copy, distribute, print, search, or link to the full texts of these articles,

crawl them for indexing, pass them as data to software, or use them for any other lawful purpose, without financial, legal, or technical barriers

The only constraint on reproduction and distribution, and the only role for copyright in this domain should be to give authors control over the integrity of their work and the right to be properly acknowledged and cited. users must be able to "copy, use, distribute, transmit and display the work publicly and to make and distribute derivative works, in any digital medium for any responsible purpose, subject to proper attribution of authorship."