In its most basic sense, Open Access publishing (OA) refers to publishing to articles, books or other documents in some fashion that allows any user to access the full document without having to pay for it, either by individual purchase, or by having a subscription to the journal in which it appears. OA publishing ihas grown up along with electronic publishing on the Internet.
However, as the concept has devloped, different types of OA publishing have been defined, and additional concepts such as author's retention of rights and the ability of users to adapt and reuse published materials have become attached to basic OA. Below are some definitions of terms you may see in connection with OA publishing.
- Green Open Access - Broadly speaking, this is open access outside the traditional journal structure, for which the authors pay no publication fees Green Open access services include:
- Preprint servers - These provide access to author-deposited manuscripts, generally with no pre-publication peer review, and are generally subject oriented. See our Preprints page for more information and a listing of preprint servers by discipline.
- Repositories - These hold author-deposited manuscripts or articles which have frequently (though not necessarily) been accepted for publication in scholarly journsl They may be associated with an institution (such as the University of California's eScholarship) or with a particular discipline (such as the National Institutes of Health 's PubMed Central). See the Repositories section below for more information and examples.
- Gold Open Access - This term generally refers to conventional scholarly journals in which open access publishing is supported by author publication charges (APC), rather than by subscription. The cost of APCs can vary widely from one journal to another, as well as exactly what open access features are available.
- Fully Open Access - This means that all articles in each issue of the journal are open access.
- Hybrid - These are journals in which each individual author decides whether the article will be published open access (with an APC) or be behind the paywall, meaning that a reader must have access to a subscription in order to read the articles. So, hybrid journals are supported by a mixture of APCs and subscription fees.
- Platinum Open Access - This much more rarely used term refers to scholarly journals which are fully open access, but are funded by means other than APCs. Examples include Journal of the Electrochemical Society (supported by donations from academic institutions) and ACS Central Science (a highly selective journal supported by revenue from other ACS journals.)
- Predatory Journals/predatory publishing - This term refers to journals with no scholarly credentials, created solely to leech APC money from authors desperate for a publication venue. How to decide which journals are predatory, and who gets to decide have been matters of controversy. See this article for more discussion: "Predatory journals: no definition, no defence", Nature 576, 210-212 (2019)
- Directory of Open Access Journals (DOAJ) - DOAJ is a non-profit organization whose mission is "to increase the visibility, accessibility, reputation, usage and impact of quality, peer-reviewed, open access scholarly research journals globally, regardless of discipline, geography or language." DOAJ lists only fully open access journals according to their evaluation and standards. It is used as a standard for many funders to determine whether a journal qualifies as "open access".
- Read and Publish agreements - These are a type of contract between publishers and research institutions that allows members of the institution to read all content covered by the agreement, AND to publish articles in the publisher's journals with no APCs to the authors themselves.
- Transformative agreements - "At its most fundamental, a contract is a transformative agreement if it seeks to shift the contracted payment from a library or group of libraries to a publisher away from subscription-based reading and towards open access publishing. Though there are many flavors of transformative agreements, the following attempts to offer a description of their core components." - From :Lisa Janicke Hinchcliffe, "Transformative Agreements: A Primer", The Scholarly Kitchen, Apr. 23, 2019, https://scholarlykitchen.sspnet.org/2019/04/23/transformative-agreements/ Read and Publish agreements are a type of transformative agreement.