The Ptolemy Project

Ptolemy II is released under the fairly liberal UC Berkeley copyright, 
see http://ptolemy.eecs.berkeley.edu/ptIIcopyright.htm  Most files 
have the copyright at the top.

Ptolemy II is free for academic and commercial use. You can incorporate 
it into products, but you need to include follow the instructions in the 
copyright notice.

This copyright is based on the Tcl copyright that was used when 
Prof. Ousterhout was developing Tcl here at UC Berkeley. This copyright 
was also used in Ptolemy Classic, which has been used in commercial 
products, see http://ptolemy.eecs.berkeley.edu/archive/links.htm 

"@Copyright (c) 1997-2003 The Regents of the University of California.
All rights reserved.

Permission is hereby granted, without written agreement and without
license or royalty fees, to use, copy, modify, and distribute this
software and its documentation for any purpose, provided that the
above copyright notice and the following two paragraphs appear in all
copies of this software.

IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY
FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF
THE UNIVERSITY OF CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF
SUCH DAMAGE.

THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE
PROVIDED HEREUNDER IS ON AN "AS IS" BASIS, AND THE UNIVERSITY OF
CALIFORNIA HAS NO OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES,
ENHANCEMENTS, OR MODIFICATIONS.

                                                PT_COPYRIGHT_VERSION_2
                                                COPYRIGHTENDKEY
@ProposedRating Yellow (cxh@eecs.berkeley.edu)
@AcceptedRating Yellow (cxh@eecs.berkeley.edu)  "

The Ptolemy project studies modeling, simulation, and design of concurrent, 
real-time, embedded systems. The focus is on assembly of concurrent 
components. The key underlying principle in the project is the use of 
well-defined models of computation that govern the interaction between 
components. A major problem area being addressed is the use of heterogeneous 
mixtures of models of computation. A software system called Ptolemy II is 
being constructed in Java. The work is conducted in the Center for Hybrid 
and Embedded Software Systems (CHESS) in the Department of Electrical 
Engineering and Computer Sciences of the University of California at 
Berkeley. The project is directed by Prof. Edward Lee.