<br><font size=2 face="sans-serif">Hi,</font>
<br>
<br><font size=2 face="sans-serif">Many thanks to John, Kenneth and Ulf
for your kind and precise answers.</font>
<br>
<br><font size=2 face="sans-serif">We will investigate a bit about the
limitations of this language and the potential ways of circumventing them
(ex: increasing its expressivity or generating different Erlang code -
if ever it looked both useful and easily feasible).</font>
<br>
<br><font size=2 face="sans-serif">I personally agree that Erlang would
be probably a more suitable language than xtUML, but as we have to target
C++ as well, and as people who would have to use the pivot might prefer
a language more familiar to them (like xtUML could be, rather than having
to jump into the FP bandwagon), trade-offs will have to be found.</font>
<br>
<br><font size=2 face="sans-serif">I also got in touch with Toni Siljamaki
and other people involved in ExecutableUML, to have a better view of the
current state of this language and corresponding tools. </font>
<br>
<br><font size=2 face="sans-serif">Thanks again!</font>
<br><font size=2 face="sans-serif"><br>
Best regards,</font>
<br><font size=2 face="sans-serif"><br>
Olivier Boudeville.<br>
---------------------------<br>
Olivier Boudeville<br>
<br>
EDF R&D : 1, avenue du Général de Gaulle, 92140 Clamart, France<br>
Département SINETICS, groupe ASICS (I2A), bureau B-226<br>
Office : +33 1 47 65 59 58 / Mobile : +33 6 16 83 37 22 / Fax : +33 1 47
65 27 13</font>
<br>
<br>
<br>
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<td width=40%><font size=1 face="sans-serif"><b>john.hughes@quviq.com</b>
</font>
<p><font size=1 face="sans-serif">17/02/2012 11:53</font>
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<div align=right><font size=1 face="sans-serif">A</font></div>
<td><font size=1 face="sans-serif">olivier.boudeville@edf.fr, erlang-questions@erlang.org</font>
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<td>
<div align=right><font size=1 face="sans-serif">cc</font></div>
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<td>
<div align=right><font size=1 face="sans-serif">Objet</font></div>
<td><font size=1 face="sans-serif">Re: [erlang-questions] ExecutableUML
and Erlang</font></table>
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<td></table>
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<br>
<br>
<br><font size=2 face="Arial">I've also looked at this. My conclusion was
that it provides a nice graphical syntax for a particular domain, but has
weak abilities to define additional abstractions on top. For example, just
as in Erlang messages are delivered asynchronously to recipients. But if
you want to define *synchronous* communication with a server on top of
that, by including the Pid of the sender in the message and sending a reply
back to that Pid, then you have a problem--because Pids are not first class
in xtUML and cannot be sent in messages, because message destinations must
be statically known and so your server must know all of its possible clients
in advance, and because you cannot define new graphical syntax so as to
use synchronous message sending with the same convenience as the asynchronous
kind.</font>
<br><font size=3> </font>
<br><font size=2 face="Arial">Not impressed.</font>
<br><font size=3> </font>
<br><font size=2 face="Arial">John</font>
<br><font size=3>----- Original Message ----- </font>
<br><font size=3><b>From:</b> </font><a href=mailto:olivier.boudeville@edf.fr><font size=3 color=blue><u>Olivier
BOUDEVILLE</u></font></a><font size=3> </font>
<br><font size=3><b>To:</b> </font><a href="mailto:erlang-questions@erlang.org"><font size=3 color=blue><u>erlang-questions@erlang.org</u></font></a><font size=3>
</font>
<br><font size=3><b>Sent:</b> Tuesday, February 14, 2012 4:31 PM</font>
<br><font size=3><b>Subject:</b> [erlang-questions] ExecutableUML and Erlang</font>
<br>
<br><font size=2 face="sans-serif"><br>
Hi everyone,</font><font size=3> <br>
</font><font size=2 face="sans-serif"><br>
In echo to the older thread "UML or other modeling tools" (</font><a href="http://erlang.2086793.n4.nabble.com/UML-or-other-modeling-tools-td3205732.html"><font size=2 color=blue face="sans-serif"><u>http://erlang.2086793.n4.nabble.com/UML-or-other-modeling-tools-td3205732.html</u></font></a><font size=2 face="sans-serif">),
we happened to find an Ericsson presentation about ExecutableUML (</font><a href=http://www.cse.chalmers.se/edu/year/2010/course/MDSD/Year2010/Lectures/ExecutableUML_for_MDA_EricssonAB.pdf><font size=2 color=blue face="sans-serif"><u>http://www.cse.chalmers.se/edu/year/2010/course/MDSD/Year2010/Lectures/ExecutableUML_for_MDA_EricssonAB.pdf</u></font></a><font size=2 face="sans-serif">),
which apparently was already able to generate Erlang code.</font><font size=3>
<br>
</font><font size=2 face="sans-serif"><br>
This xtUML looks like a very interesting approach; in short we are contemplating
to specify some domain-specific models that are involved in a discrete
simulation, based on a proper high-level, formal, implementation-agnostic
pivot format, targeting a few different simulation engines, one of which
expecting models to be written in C++, another one expecting them in Erlang.
So it looks like if our pivot format could be a flavour of xtUML (a special,
constrained, case thereof).</font><font size=3> <br>
</font><font size=2 face="sans-serif"><br>
Is there any material (documentation and/or tool) that is publicly available,
so that we could test this ExecutableUML-based approach? Any opinion in
terms of completeness, applicability or maturity?</font><font size=3> <br>
</font><font size=2 face="sans-serif"><br>
Thanks in advance for any information!</font><font size=3> <br>
</font><font size=2 face="sans-serif"><br>
Best regards,<br>
<br>
Olivier.<br>
---------------------------<br>
Olivier Boudeville<br>
<br>
EDF R&D : 1, avenue du Général de Gaulle, 92140 Clamart, France<br>
Département SINETICS, groupe ASICS (I2A), bureau B-226<br>
Office : +33 1 47 65 59 58 / Mobile : +33 6 16 83 37 22 / Fax : +33 1 47
65 27 13</font><tt><font size=3><br>
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