Educational Community License

Version 2.0, April 2007 

The Educational Community License version 2.0 ("ECL") consists of the
Apache 2.0 license, modified to change the scope of the patent grant in
section 3 to be specific to the needs of the education communities using
this license. The original Apache 2.0 license can be found at: 


1. Definitions.

"License" shall mean the terms and conditions for use, reproduction, and
distribution as defined by Sections 1 through 9 of this document.

"Licensor" shall mean the copyright owner or entity authorized by the
copyright owner that is granting the License.

"Legal Entity" shall mean the union of the acting entity and all other
entities that control, are controlled by, or are under common control
with that entity. For the purposes of this definition, "control" means
(i) the power, direct or indirect, to cause the direction or management
of such entity, whether by contract or otherwise, or (ii) ownership of
fifty percent (50%) or more of the outstanding shares, or (iii)
beneficial ownership of such entity.

"You" (or "Your") shall mean an individual or Legal Entity exercising
permissions granted by this License.

"Source" form shall mean the preferred form for making modifications,
including but not limited to software source code, documentation source,
and configuration files.

"Object" form shall mean any form resulting from mechanical
transformation or translation of a Source form, including but not
limited to compiled object code, generated documentation, and
conversions to other media types.

"Work" shall mean the work of authorship, whether in Source or Object
form, made available under the License, as indicated by a copyright
notice that is included in or attached to the work (an example is
provided in the Appendix below).

"Derivative Works" shall mean any work, whether in Source or Object
form, that is based on (or derived from) the Work and for which the
editorial revisions, annotations, elaborations, or other modifications
represent, as a whole, an original work of authorship. For the purposes
of this License, Derivative Works shall not include works that remain
separable from, or merely link (or bind by name) to the interfaces of,
the Work and Derivative Works thereof.

"Contribution" shall mean any work of authorship, including the original
version of the Work and any modifications or additions to that Work or
Derivative Works thereof, that is intentionally submitted to Licensor
for inclusion in the Work by the copyright owner or by an individual or
Legal Entity authorized to submit on behalf of the copyright owner. For
the purposes of this definition, "submitted" means any form of
electronic, verbal, or written communication sent to the Licensor or its
representatives, including but not limited to communication on
electronic mailing lists, source code control systems, and issue
tracking systems that are managed by, or on behalf of, the Licensor for
the purpose of discussing and improving the Work, but excluding
communication that is conspicuously marked or otherwise designated in
writing by the copyright owner as "Not a Contribution."

"Contributor" shall mean Licensor and any individual or Legal Entity on
behalf of whom a Contribution has been received by Licensor and
subsequently incorporated within the Work.

2. Grant of Copyright 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 copyright license to reproduce, prepare
Derivative Works of, publicly display, publicly perform, sublicense, and
distribute the Work and such Derivative Works in Source or Object form.

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.

4. Redistribution.

You may reproduce and distribute copies of the Work or Derivative Works
thereof in any medium, with or without modifications, and in Source or
Object form, provided that You meet the following conditions:

   1. You must give any other recipients of the Work or Derivative Works
a copy of this License; and
   2. You must cause any modified files to carry prominent notices
stating that You changed the files; and
   3. You must retain, in the Source form of any Derivative Works that
You distribute, all copyright, patent, trademark, and attribution
notices from the Source form of the Work, excluding those notices that
do not pertain to any part of the Derivative Works; and
   4. If the Work includes a "NOTICE" text file as part of its
distribution, then any Derivative Works that You distribute must include
a readable copy of the attribution notices contained within such NOTICE
file, excluding those notices that do not pertain to any part of the
Derivative Works, in at least one of the following places: within a
NOTICE text file distributed as part of the Derivative Works; within the
Source form or documentation, if provided along with the Derivative
Works; or, within a display generated by the Derivative Works, if and
wherever such third-party notices normally appear. The contents of the
NOTICE file are for informational purposes only and do not modify the
License. You may add Your own attribution notices within Derivative
Works that You distribute, alongside or as an addendum to the NOTICE
text from the Work, provided that such additional attribution notices
cannot be construed as modifying the License.

You may add Your own copyright statement to Your modifications and may
provide additional or different license terms and conditions for use,
reproduction, or distribution of Your modifications, or for any such
Derivative Works as a whole, provided Your use, reproduction, and
distribution of the Work otherwise complies with the conditions stated
in this License.

5. Submission of Contributions.

Unless You explicitly state otherwise, any Contribution intentionally
submitted for inclusion in the Work by You to the Licensor shall be
under the terms and conditions of this License, without any additional
terms or conditions. Notwithstanding the above, nothing herein shall
supersede or modify the terms of any separate license agreement you may
have executed with Licensor regarding such Contributions.

6. Trademarks.

This License does not grant permission to use the trade names,
trademarks, service marks, or product names of the Licensor, except as
required for reasonable and customary use in describing the origin of
the Work and reproducing the content of the NOTICE file.

7. Disclaimer of Warranty.

Unless required by applicable law or agreed to in writing, Licensor
provides the Work (and each Contributor provides its Contributions) on
express or implied, including, without limitation, any warranties or
PARTICULAR PURPOSE. You are solely responsible for determining the
appropriateness of using or redistributing the Work and assume any risks
associated with Your exercise of permissions under this License.

8. Limitation of Liability.

In no event and under no legal theory, whether in tort (including
negligence), contract, or otherwise, unless required by applicable law
(such as deliberate and grossly negligent acts) or agreed to in writing,
shall any Contributor be liable to You for damages, including any
direct, indirect, special, incidental, or consequential damages of any
character arising as a result of this License or out of the use or
inability to use the Work (including but not limited to damages for loss
of goodwill, work stoppage, computer failure or malfunction, or any and
all other commercial damages or losses), even if such Contributor has
been advised of the possibility of such damages.

9. Accepting Warranty or Additional Liability.

While redistributing the Work or Derivative Works thereof, You may
choose to offer, and charge a fee for, acceptance of support, warranty,
indemnity, or other liability obligations and/or rights consistent with
this License. However, in accepting such obligations, You may act only
on Your own behalf and on Your sole responsibility, not on behalf of any
other Contributor, and only if You agree to indemnify, defend, and hold
each Contributor harmless for any liability incurred by, or claims
asserted against, such Contributor by reason of your accepting any such
warranty or additional liability.