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oa-logo-50w.jpgOpen Access 

Glossary of terms

​Open Access

​Unrestricted online access to peer-reviewed and published scholarly outputs.

​​Green OA

​Version of a publication is made available free of charge to readers usually through an institutional repository and often with an embargo period.

Gold OA​

​Published articles are made available immediately and free of charge to readers. The author, or their institution, pays an Article Processing Charge (APC) to the publisher.

​Embargo period

Some publishers only permit Green OA after an embargo period. 


RCUK and HEFCE policy accepts a maximum of 12 month in STEM and 24 months in SSH. Horizon 2020 accepts a maximum of six months in STEM and 12 months in SSH​.

APC Article Processing Charge​

​A fee paid to a publisher to make an article free at point of access.


​University of Brighton Repository - publicly viewable.


​Research management system.

​OA archive

​Another name for repositories: institutional or discipline.

OA journals​

​Perform peer review and make contents freely available. Requires payment of APC.

​Hybrid OA journal

​Journal where only some of the articles are Open Access and the remainder are subscription access only. Typically requires a payment of an APC to the publishers.

Double dipping

​Situation where a publishers charges an APC on top of its normal subscription fee if an author wants to make their article OA. Could result in an institution paying twice.

Creative Commons



Non-profit organisation, dedicated to making it easier to share and build on work of others within framework of national copyright laws. Suite of free copyright licences providing a standardised way of giving users permissions to share and use creative and scholarly work​.


Attribution CC-BY – share, copy, distribute, transmit, reuse for commercial purposes as long as you attribute the work.



​Attribution CC-BY-NC - share, copy, distribute, transmit, reuse for non-commercial purposes as long as you attribute the work.


​Open Access Infrastructure Europe


​Directory Open Access repositories


Union catalogue of millions of records representing Open Access digital resources, built by harvesting from Open Access collections worldwide​.


​Open Archives Initiative Protocol for Metadata Harvesting


​Journal OA policies.


​Matching funder and publisher requirements.


​Research funders policies.

Page owner: Cath Morgan