<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>0120-1751</journal-id>
<journal-title><![CDATA[Revista Colombiana de Estadística]]></journal-title>
<abbrev-journal-title><![CDATA[Rev.Colomb.Estad.]]></abbrev-journal-title>
<issn>0120-1751</issn>
<publisher>
<publisher-name><![CDATA[Departamento de Estadística - Universidad Nacional de Colombia.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0120-17512005000200004</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Optimización de sistemas de respuesta dual.Una aproximación compromiso]]></article-title>
<article-title xml:lang="en"><![CDATA[Dual Response Systems Optimization. A Compromise Approach]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[CRISTANCHO F]]></surname>
<given-names><![CDATA[CÉSAR A]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[OSCAR O]]></surname>
<given-names><![CDATA[MELO M]]></given-names>
</name>
<xref ref-type="aff" rid="A02"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,Universidad Nacional de Colombia  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
</aff>
<aff id="A02">
<institution><![CDATA[,Universidad Nacional de Colombia  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
</aff>
<pub-date pub-type="pub">
<day>05</day>
<month>12</month>
<year>2005</year>
</pub-date>
<pub-date pub-type="epub">
<day>05</day>
<month>12</month>
<year>2005</year>
</pub-date>
<volume>28</volume>
<numero>2</numero>
<fpage>155</fpage>
<lpage>171</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0120-17512005000200004&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0120-17512005000200004&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0120-17512005000200004&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Recientemente se han propuesto diversas aproximaciones para la optimización de procesos donde se identifican dos variables respuesta, sin llegar a un concenso en el establecimiento de una solución compromiso ante la presencia de múltiples condiciones contradictorias. Se propone una nueva metodología que toma en cuenta simultáneamente la calidad de las predicciones, las variabilidades relativas y los costos o preferencias asociados a cada respuesta. Se ilustra mediante un ejemplo y los resultados pueden ser replicados utilizando el módulo SOLVER de EXCEL.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Several approximations have been recently proposed to optimize processes in which are identified two responses variables, but there is no agreement in the establishment of a compromise solution among the multiples conflicting conditions. We propose a new methodology which takes simultaneously into account the quality of the predictions, the relative variabilities and the cost or preference of each response. An example illustrates the methodology and the results can be replicated using EXCEL SOLVER.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Análisis multiobjetivo]]></kwd>
<kwd lng="es"><![CDATA[sistemas de respuesta dual]]></kwd>
<kwd lng="es"><![CDATA[superficies de respuesta]]></kwd>
<kwd lng="es"><![CDATA[múltiples respuestas]]></kwd>
<kwd lng="es"><![CDATA[optimización simultánea]]></kwd>
<kwd lng="en"><![CDATA[Multiobjective analysis]]></kwd>
<kwd lng="en"><![CDATA[Dual response systems]]></kwd>
<kwd lng="en"><![CDATA[Response surfaces]]></kwd>
<kwd lng="en"><![CDATA[Multiple responses]]></kwd>
<kwd lng="en"><![CDATA[Simultaneous optimization]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[   <font size="2" face="verdana">        <p>    <center><b><font size="4">Optimizaci&oacute;n de sistemas de respuesta dual. Una aproximaci&oacute;n compromiso</font></b></center></p>      <p>    <center><b><font size="3">Dual Response Systems Optimization. A Compromise Approach</font></b></center></p>        <p>    <center>C&Eacute;SAR A. CRISTANCHO F.<sup>1</sup>, OSCAR O. MELO M. <sup>2</sup></center></p>        <p><sup>1</sup>Estad&iacute;stico de la Universidad Nacional de Colombia, E-mail: <a href="mailto:proevalasig_bog@unal.edu.co">proevalasig_bog@unal.edu.co</a>    <br>  <sup>2</sup> Profesor asistente de la Universidad Nacional de Colombia, E-mail: <a href="mailto:omelom@unal.edu.co">omelom@unal.edu.co</a></p>    <hr size="1">        <p>    ]]></body>
<body><![CDATA[<center><b>Resumen</b></center></p>        <p>Recientemente se han propuesto diversas aproximaciones para la optimizaci&oacute;n de procesos donde se identifican dos variables respuesta, sin llegar a un  concenso en el establecimiento de una soluci&oacute;n compromiso ante la presencia  de m&uacute;ltiples condiciones contradictorias. Se propone una nueva metodolog&iacute;a  que toma en cuenta simult&aacute;neamente la calidad de las predicciones, las varia  bilidades relativas y los costos o preferencias asociados a cada respuesta. Se  ilustra mediante un ejemplo y los resultados pueden ser replicados utilizando  el m&oacute;dulo SOLVER de EXCEL.</p>        <p><b><i>Palabras Clave:</i></b> An&aacute;lisis multiobjetivo, sistemas de respuesta dual, su  perficies de respuesta, m&uacute;ltiples respuestas, optimizaci&oacute;n simult&aacute;nea.</p>    <hr size="1">        <p>    <center><b>Abstract</b></center></p>        <p>Several approximations have been recently proposed to optimize proces  ses in which are identified two responses variables, but there is no agreement  in the establishment of a compromise solution among the multiples conflic  ting conditions. We propose a new methodology which takes simultaneously  into account the quality of the predictions, the relative variabilities and the  cost or preference of each response. An example illustrates the methodology  and the results can be replicated using EXCEL SOLVER.</p>        <p><b><i>Keywords:</i></b> Multiobjective analysis, Dual response systems, Response sur  faces, Multiple responses, Simultaneous optimization.</p>    <hr size="1">        <p>Texto completo disponible en <a href="pdf/rce/v28n2/v28n2a04.pdf">PDF</a></p>    <hr size="1">        <p><b><font size="3">Referencias</font></b></p>    </font>    <!-- ref --><p><font size="2" face="verdana">1. Censor, Y. (1977), &quot;Pareto optimality in multiobjetive problems&quot;, <i>Applied Mathe  matics and Optimization</i> <b>4</b>, 41- 59.</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=000022&pid=S0120-1751200500020000400001&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p>2. Del Castillo, E. &amp; Montgomery, D. C. (1993), &quot;A nonlinear programming solution  to the dual response problem&quot;, <i>Journal of Quality Technology</i> <b>25</b>, 199 204.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=000023&pid=S0120-1751200500020000400002&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p><font size="2" face="verdana">3. Derringer, G. &amp; Such, R. (1980), &quot;Simultaneous optimization of several responses  variables&quot;, <i>Journal of Quality Technology</i> <b>12</b>, 214- 219.</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=000024&pid=S0120-1751200500020000400003&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p>4. Graybill, F. A. 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White Plains, New  York.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=000031&pid=S0120-1751200500020000400010&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p><font size="2" face="verdana">11. Tang, L. C. &amp; Xu, K. (2002), &quot;A unified approach for dual response surface optimization&quot;,  <i>Journal of Quality Technology</i> <b>34</b>, 437- 447.</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=000032&pid=S0120-1751200500020000400011&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p><font size="2" face="verdana">12. Vining, G. 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