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<html xmlns="http://www.w3.org/1999/xhtml"><head><title>second-system effect</title><link rel="stylesheet" href="../../jargon.css" type="text/css"/><meta name="generator" content="DocBook XSL Stylesheets V1.61.0"/><link rel="home" href="../index.html" title="The Jargon File"/><link rel="up" href="../S.html" title="S"/><link rel="previous" href="search-and-destroy-mode.html" title="search-and-destroy mode"/><link rel="next" href="secondary-damage.html" title="secondary damage"/></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">second-system effect</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="search-and-destroy-mode.html">Prev</a><EFBFBD></td><th width="60%" align="center">S</th><td width="20%" align="right"><EFBFBD><a accesskey="n" href="secondary-damage.html">Next</a></td></tr></table><hr/></div><dt><a id="second-system-effect"/><dt xmlns="" id="second-system-effect"><b>second-system effect</b>: <span xmlns="http://www.w3.org/1999/xhtml" class="grammar">n.</span></dt></dt><dd><p> (sometimes, more euphoniously, <span class="firstterm">second-system syndrome</span>) When one is designing
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the successor to a relatively small, elegant, and successful system, there
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is a tendency to become grandiose in one's success and design an
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<a href="../E/elephantine.html"><i class="glossterm">elephantine</i></a> feature-laden monstrosity. The term was
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first used by Fred Brooks in his classic <i class="citetitle">The Mythical Man-Month:
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Essays on Software Engineering</i> (Addison-Wesley, 1975; ISBN
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0-201-00650-2). It described the jump from a set of nice, simple operating
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systems on the IBM 70xx series to OS/360 on the 360 series. A similar
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effect can also happen in an evolving system; see
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<a href="../B/Brookss-Law.html"><i class="glossterm">Brooks's Law</i></a>, <a href="../C/creeping-elegance.html"><i class="glossterm">creeping elegance</i></a>,
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<a href="../C/creeping-featurism.html"><i class="glossterm">creeping featurism</i></a>. See also
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<a href="../M/Multics.html"><i class="glossterm">Multics</i></a>, <a href="../O/OS-2.html"><i class="glossterm">OS/2</i></a>,
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<a href="../X/X.html"><i class="glossterm">X</i></a>, <a href="software-bloat.html"><i class="glossterm">software bloat</i></a>.</p><p>This version of the jargon lexicon has been described (with
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altogether too much truth for comfort) as an example of second-system
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effect run amok on jargon-1....</p></dd><div class="navfooter"><hr/><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="search-and-destroy-mode.html">Prev</a><EFBFBD></td><td width="20%" align="center"><a accesskey="u" href="../S.html">Up</a></td><td width="40%" align="right"><EFBFBD><a accesskey="n" href="secondary-damage.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">search-and-destroy mode<64></td><td width="20%" align="center"><a accesskey="h" href="../index.html">Home</a></td><td width="40%" align="right" valign="top"><EFBFBD>secondary damage</td></tr></table></div></body></html>
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