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+
<h1>License</h1>
- <ol>
- <li><strong>When <acronym>deal.II</acronym> is Open Source, can I use it to make
- commercial (proprietary) software?</strong>
- <p>
- <em>No.</em>
- </p>
-
- <p>
- You will still need to obtain a profesional version of
- <acronym>deal.II</acronym> from the authors to make commercial
- (proprietary) software with <acronym>deal.II</acronym>
- (unless, as always, you release software as free/Open Source
- software).
- </p>
-
-
- <li><strong>I want to put <acronym>deal.II</acronym>, and
- applications that use it, on a CD-ROM or on a web
- site. Can I do that with the Free Edition?</strong>
- <p>
- <em>Yes.</em>
- </p>
-
- <p>
- You may copy and redistribute <acronym>deal.II</acronym>, both
- at home and at work, without restrictions.
- </p>
- </ol>
-The license is called the Q Public License (or
-"QPL"), and qualifies as an
-<a href="http://www.opensource.org/osd.html" target="_top">Open Source
-license</a>. It is
-thus appropriate for people wishing to write software under the
-<a href="http://www.opensource.org" target="_top">Open Source</a>
-model where all source
-code to the software is made available to all users and can be freely
-modified and redistributed. <p> The QPL prohibits development of
-proprietary software. For Qt our <a href="http://www.troll.no/pricing.html">Qt Professional
-Edition</a> product is available for this.
+ <p>
+ <acronym>deal.II</acronym> is placed under an Open Source license,
+ in the sense advocated by the
+ <a href="http://www.opensource.org" target="_top">Open Source
+ Initiative</a>. You are thus free to copy and use it, and you have
+ free access to all source codes.
+ </p>
+
+ <p>
+ The license under which we have placed <acronym>deal.II</acronym> is
+ called the Q Public License (or "QPL"), and qualifies as an <a
+ href="http://www.opensource.org/osd.html" target="_top">Open Source
+ license</a>. It is thus appropriate for people wishing to write
+ software under the <a href="http://www.opensource.org"
+ target="_top">Open Source</a> model where all source code to the
+ software is made available to all users and can be freely modified
+ and redistributed. The QPL was originally developed by
+ <a href="http://www.troll.no" target="_top">Troll Tech</a> for their
+ Qt program library, but has since gained some support by other
+ library authors as well.
+ </p>
<p>
- See also:
-    <a href="http://www.troll.no/qpl/annotated.html" target="_top">Annotated version</a>
-    <a href="http://www.troll.no/qpl/plaintext.txt" target="_top">Plain text version</a>
-    <a href="http://www.troll.no/announce/qpl.html" target="_top">Announcement</a>
-    <a href="http://www.troll.no/qpl/comments.html" target="_top">Comments</a>
+ The QPL prohibits development of proprietary software. If you intend
+ to develop commercial software based on <acronym>deal.II</acronym>,
+ we are willing to negotiate a different agreement. Feel free to
+ contact us in this case.
</p>
+ <p>
+ For more information on the QPL, please see also the following
+ links:
+ <br>
+    
+    
+ <a href="http://www.troll.no/qpl/annotated.html" target="_top">Annotated version</a>
+    
+ <a href="http://www.troll.no/qpl/plaintext.txt" target="_top">Plain text version</a>
+    
+ <a href="http://www.troll.no/announce/qpl.html" target="_top">Announcement</a>
+    
+ <a href="http://www.troll.no/qpl/comments.html" target="_top">Comments</a>
+ </p>
+
+
+ <p>
+ In addition to the terms imposed by the QPL, we have one restriction
+ on the use of the library:
+ <ul>
+ <li> Every publication which is based in essential parts on
+ numerical results obtained with the help of
+ <acronym>deal.II</acronym> shall state the name of the library
+ and its principle authors (at present Wolfgang Bangerth and
+ Guido Kanschat), as well as cite one of the papers by these
+ authors on <acronym>deal.II</acronym>.
+ </ul>
+ Please note that by this we do not mean to restrict your freedom of
+ publication, but we need external citations to justify our work on
+ the development of the library in regular reviews which our
+ institute has to undergo.
+ </p>
+
+
+
<hr>
<h1 align=center>
THE Q PUBLIC LICENSE
projects / dealii-svn.git / commitdiff