Table of Contents

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Overall information and licence lists

• OSS licences Licences and licence selectionLicence Selection

• old_Software licence selection and management in GÉANT
• Important licences for licence selection
• Open Source Software Licences in GN4-3 and GN5-1 GÉANT Project: Current State and Recommendations whitepaper with a brief explanation of licence types and tables with 20 frequent licences (in GÉANT) in Appendix A
• Detailed database of licences – a set of sheets, with the first one providing an integral view of key licence characteristics
  

• GÉANT Open Source Licensing and Compliance workshop recording and slides, 5-6 April 2023

• GÉANT Open Source Licensing and Compliance workshop recording and slides, 17 February 2022

• Licence Analysis with WhiteSource webinar, 2 March 2022 (workshop recording)

• What is Free Software? https://www.gnu.org/philosophy/free-sw.en.html

• Guide to open source licenses, overall description, https://www.synopsys.com/blogs/software-security/open-source-licenses/

• Top lists

  • Top open source licenses and legal risk for developers, top 20 categorised by risk, https://www.synopsys.com/blogs/software-security/top-open-source-licenses/

  • Mend – Open Source Licenses in 2022: Trends and Predictions, https://www.mend.io/resources/blog/open-source-licenses-trends-and-predictions/

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Permissive and copyleft licences

(Based on materials from ORCRO)

Permissive licences have simple requirements – to credit original work, describe changes, provide a disclaimer, etc. Copyleft licences (“reciprocal”, “protective”, “restrictive”, derogatory: “viral”) require the rights to be preserved in derivative works. If you use any components (libraries) with copyleft, you are obliged to make derived source code available, which may include the entire product/project!

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