There are two main models of open access:

Green open access

The UniSA Open Access Policy supports green open access.

With green open access:

• publishers allow open access versions of non-OA material to be archived, ie the accepted manuscript or pre-print)
• a version of the output is accessible from institutional repositories (e.g. UniSA Research Outputs Repository) or subject/discipline repositories (e.g. PubMed)
• this can be the cheapest form of academic publishing (it is free for both author and user)

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Gold open access

With gold open access:

• material is 'born OA'
• free access is from the moment of publication
• typically authors retain copyright
• content often available under a Creative Commons or similar licence
• often requires a fee per article to publish

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Variations on the green and gold open access models are usually determined by the publisher or based on the fee paid for publishing in an OA journal. Examples include:

Hybrid open access

• authors decide how their articles are published in journals that offer traditional subscription as well as open access content
• is based on a payment for publishing as open access from the moment of publication
• authors generally retain copyright if paying for open access, and can usually archive the published version in institutional or subject repositories straightaway

Bronze open access

Bronze open access refers to publications that are available on websites hosted by their publisher, either immediately or following an embargo, but are not formally licensed for reuse.

Some publishers now offer Read & Publish agreements, which allow the cost of publishing open access to be covered by the Library rather than by UniSA authors. See the Read & Publish tab for full details of the participating publishers, journals, and conditions.

For some other publishers, discounts are available for publishing under the gold open access model. The publishers and discounts are:

• BioMed Central and Springer Open - 15% discount on article processing charges (APCs) for UniSA staff. Please submit using your UniSA email address while connected to a UniSA campus network
• Elsevier - 15% discount on APCs for fully gold open access journals, and hybrid journals not covered by the Elsevier Read & Publish agreement
• IGI Global - 5% discount on APCs for UniSA staff publishing in 175+ fully gold open access journals
• Institution of Civil Engineers (ICE) - 15% discount on APCs for both hybrid and gold OA journals. The discount is applied automatically upon acceptance when the corresponding author uses their UniSA email address
• MDPI - 10% discount on APCs for UniSA staff and students
• Royal Society of Chemistry - 15% discount

To help choose a journal to publish in, it is worth reviewing the publisher’s policies regarding author rights for archiving in an institutional or subject repository. Some publishers, not all, allow open access versions of non-OA material to be archived but place lengthy embargos on when the accepted manuscript can be made freely available. Although most publishers will permit an accepted manuscript be made publicly available after a 12 month embargo, some journals may apply an embargo that lasts for 4 years.

Examples of embargo periods applied by publishers include:

• Gender in Management (Emerald) - no embargo period
• Journal of Materials Science (Springer) - 12 months
• The Leadership Quarterly (Elsevier) - 36 months

SHERPA/ROMEO provides a searchable database of journals and publishers' policies on OA and self-archiving and can help find more information.