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<p>For example, an aspect may be written to enforce that calls to a certain API are always logged, or that errors are always logged when an exception is thrown, regardless of whether the program's procedural code handles the exception or propagates it.</p>

<p><big> Levels of analysis in artificial intelligence </big></p>
<p>In <a href="page.php?w=cognitive_science">cognitive science</a> and <a href="page.php?w=artificial_intelligence">artificial intelligence</a>, it is common to refer to David Marr's <a href="page.php?w=David_Marr_%28neuroscientist%29">levels of analysis</a>.</p><p>
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