Educational Community License

The Educational Community License (ECL) is a free and open source license based on the Apache license (version 2.0) and created with the specific needs of the academic community in mind.[2]

Educational Community License
Latest version2.0
Published2007
SPDX identifierECL-1.0, ECL-2.0
DFSG compatible?
FSF approvedYes[1]
OSI approvedYes[2]
CopyleftNo[1]
Linking from code with a different licenceYes

Version 2.0 of the ECL came out of the Licensing and Policy Summit[3] held in October 2006 in Indianapolis, Indiana where members of the academic community came together to address the concerns of releasing software written at an academic institution under a free/open source license. Members of the summit included university attorneys, technology transfer officers, free/open source project leaders, and foundation representatives. In particular, representatives of the Sakai Project and Kuali Foundation were in attendance.

ECL version 2.0 was approved by the Open Source Initiative in the Summer of 2007, and the Free Software Foundation lists it as being a "GPL-Compatible Free Software License" that is compatible with version 3 of the GNU General Public License but not compatible with GPLv2.[1] This means that a software developer can mix code from an ECLv2 licensed project and a GPLv3 licensed project but, due to license terms incompatibility, they are not allowed to mix code from an ECLv2 project and a GPLv2 project.

EDUCAUSE (Ref 2 below) says of the ECL, "It is essentially the Apache 2.0 license with a modification of the patent language to make it workable for many colleges and universities." The two patent clauses are reproduced below.

The Apache licence patent clause states:

"3. Grant of Patent License. Subject to the terms and conditions of this License, each Contributor hereby grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable (except as stated in this section) patent license to make, have made, use, offer to sell, sell, import, and otherwise transfer the Work, where such license applies only to those patent claims licensable by such Contributor that are necessarily infringed by their Contribution(s) alone or by combination of their Contribution(s) with the Work to which such Contribution(s) was submitted. If You institute patent litigation against any entity (including a cross-claim or counterclaim in a lawsuit) alleging that the Work or a Contribution incorporated within the Work constitutes direct or contributory patent infringement, then any patent licenses granted to You under this License for that Work shall terminate as of the date such litigation is filed."

The ECL patent clause states (differences are underlined):

"3. Grant of Patent License. Subject to the terms and conditions of this License, each Contributor hereby grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable (except as stated in this section) patent license to make, have made, use, offer to sell, sell, import, and otherwise transfer the Work, where such license applies only to those patent claims licensable by such Contributor that are necessarily infringed by their Contribution(s) alone or by combination of their Contribution(s) with the Work to which such Contribution(s) was submitted. If You institute patent litigation against any entity (including a cross-claim or counterclaim in a lawsuit) alleging that the Work or a Contribution incorporated within the Work constitutes direct or contributory patent infringement, then any patent licenses granted to You under this License for that Work shall terminate as of the date such litigation is filed. Any patent license granted hereby with respect to contributions by an individual employed by an institution or organization is limited to patent claims where the individual that is the author of the Work is also the inventor of the patent claims licensed, and where the organization or institution has the right to grant such license under applicable grant and research funding agreements. No other express or implied licenses are granted."

Notes
  1. GPL-Compatible Free Software Licenses
  2. "Educational Community License". EDUCAUSE. Archived from the original on 2012-05-02. Retrieved 5 November 2014.
  3. Open Source Collaboration in Higher Education: Guidelines and Report of the Licensing and Policy Framework Summit for Software Sharing in Higher Education
gollark: > One inadequately solved design problem was the need for heavy shielding to protect the crew and those on the ground from acute radiation syndrome; other potential problems included dealing with crashes.[2] ah yes.
gollark: That is not much of an issue. The carbon dioxide production from them is. If we ran out somehow, it would be possible to synthesize more (with energy input, obviously).
gollark: Also, I think there are some nuclear plane concepts? Generally they use the heat from the nuclear stuff directly in some way.
gollark: This is probably far beyond the life expectancy of a plane.
gollark: > And also if you have a kerosene powered plane it will become useless in however many years when a drop of oil costs $100
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