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<span id="openzim-page-title" class="mw-page-title-main"><span class="mw-page-title-main">KRL (programming language)</span></span>
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</style><div role="note" class="hatnote navigation-not-searchable">Not to be confused with <a href="Kinetic_Rule_Language" title="Kinetic Rule Language">Kinetic Rule Language</a> or <a href="KUKA_Robot_Language" title="KUKA Robot Language">KUKA Robot Language</a>.</div>
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</style><table class="infobox vevent"><tbody><tr><th colspan="2" class="infobox-above" style="background-color:#e0e0e0;">KRL</th></tr><tr><th scope="row" class="infobox-label"><a href="Programming_paradigm" title="Programming paradigm">Paradigm</a></th><td class="infobox-data"><a href="Knowledge_representation" class="mw-redirect" title="Knowledge representation">knowledge representation</a></td></tr><tr><th scope="row" class="infobox-label"><a href="Software_developer" class="mw-redirect" title="Software developer">Developer</a></th><td class="infobox-data organiser">Daniel G. Bobrow and Terry Winograd</td></tr><tr><th scope="row" class="infobox-label">First appeared</th><td class="infobox-data">1976</td></tr><tr><th colspan="2" class="infobox-header" style="background-color: #EEEEEE;">Influenced</th></tr><tr><td colspan="2" class="infobox-full-data">KM, FRL (MIT)</td></tr></tbody></table>
<p><b>KRL</b> is a <a href="Knowledge_representation" class="mw-redirect" title="Knowledge representation">knowledge representation</a> <a href="Programming_language" title="Programming language">language</a>, developed by <a href="Daniel_G._Bobrow" title="Daniel G. Bobrow">Daniel G. Bobrow</a> and <a href="Terry_Winograd" title="Terry Winograd">Terry Winograd</a> while at <a href="Xerox_PARC" class="mw-redirect" title="Xerox PARC">Xerox PARC</a> and <a href="Stanford_University" title="Stanford University">Stanford University</a>, respectively. It is a <a href="Semantic_frames" class="mw-redirect" title="Semantic frames">frame</a>-based language.
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<p>KRL was an attempt to produce a language which was nice to read and write for the engineers who had to write programs in it, processed like human memory, so you could have realistic AI programs, had an underlying semantics which was firmly grounded like logic languages, all in one, all in one language. And I think it - again, in hindsight - it just bogged down under the weight of trying to satisfy all those things at once.
<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup>
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<div class="mw-heading mw-heading2"><h2 id="References">References</h2></div>
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<li id="cite_note-1"><span class="mw-cite-backlink"><b><a href="#cite_ref-1">^</a></b></span> <span class="reference-text"><a rel="nofollow" class="external text" href="http://purl.umn.edu/107717">Oral history interview with Terry Winograd</a> at <a href="Charles_Babbage_Institute" class="mw-redirect" title="Charles Babbage Institute">Charles Babbage Institute</a>, University of Minnesota, Minneapolis.</span>
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<div class="mw-heading mw-heading2"><h2 id="Further_reading">Further reading</h2></div>
<ul><li>"An Overview of KRL, a Knowledge Representation Language", <a href="Daniel_G._Bobrow" title="Daniel G. Bobrow">D.G. Bobrow</a> and <a href="Terry_Winograd" title="Terry Winograd">T. Winograd</a>, Cognitive Sci 1:1 (1977).</li>
<li>Daniel G. Bobrow, Terry Winograd, <a rel="nofollow" class="external text" href="http://i.stanford.edu/pub/cstr/reports/cs/tr/76/581/CS-TR-76-581.pdf">An Overview of KRL, A Knowledge Representation Language</a>, Stanford Artificial Intelligence Laboratory Memo AIM 293, 1976.</li></ul>
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