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All software produced by The Apereo Foundation or any of its projects or subjects is licensed according to the terms of the Educational Community License (ECL). In addition, the with an Outbound License which is approved by the Open Source Initiative. The whole compilation which the Apereo Foundation releases as the Sakai Collaboration and Learning Environment (CLE) is licensed under the terms of the ECL. It is important to understand, however, that many component parts of the Sakai software distributions retain their original copyright and licensing terms.
The Apereo Foundation believes that open-open licensing is fundamental to achieving the goals of the Sakai Community. The ECL is "open-open" because it permits unrestricted, use, modification, and distribution without a copyleft provision to require downstream modification to carry the same terms. The ECL is fundamental to achieving the goals of the Apereo Foundation Sakai project and supportive of collaborative development across both nonprofit and commercial organizations. The ECL was certified by the Open Source Initiative in 2005.
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Follow the 3rd party evaluation process if you are considering using 3rd party code in work for the Apereo FoundationSakai project.