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<p>Thanks!</p>
<p>The documents highlight by Albert Rafetseder help me to find some
answers.</p>
<p>From Miller's writing "The Deadly Embrace Between Music Software
and Its Users" (<a class="moz-txt-link-freetext" href="http://msp.ucsd.edu/Publications/pdf_EMS14_puckette.pdf">http://msp.ucsd.edu/Publications/pdf_EMS14_puckette.pdf</a>),
I would synthetise as follow.</p>
<p>The three most important criteria in development of Pd:</p>
<ul>
<li>longevity:</li>
<ul>
<li>limit of maintainability < 100 000 lines of code (not 10
000 indeed !)<br>
</li>
<li>usable lifetime of 50 years : avoid adding any but the most
carefully justified and planned extensions now</li>
</ul>
<li>new versions of Pd should run older patches compatibly (For
me, it sounds like the first criteria)<br>
</li>
<li>Pd should never stop working unexpectedly during a live
performance</li>
</ul>
<p><3 <br>
</p>
<p>j.<br>
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