{"id":47125,"date":"2025-02-26T09:00:00","date_gmt":"2025-02-26T08:00:00","guid":{"rendered":"https:\/\/parm.com\/?p=47125"},"modified":"2026-09-28T10:38:17","modified_gmt":"2026-09-28T08:38:17","slug":"pert-en-el-punto-de-mira-estrategias-para-una-planificacion-temporal-realista","status":"publish","type":"post","link":"https:\/\/parm.com\/es\/pert-en-el-punto-de-mira-estrategias-para-una-planificacion-temporal-realista\/","title":{"rendered":"PERT en el punto de mira: Estrategias para una planificaci\u00f3n temporal realista"},"content":{"rendered":"\n<div class=\"et_pb_section_0 et_pb_section et_section_regular et_block_section\"><div class=\"et_pb_row_0 et_pb_row et_block_row\"><div class=\"et_pb_column_0 et_pb_column et_pb_column_4_4 et-last-child et_block_column et_pb_css_mix_blend_mode_passthrough\"><div class=\"et_pb_text_0 et_pb_text et_pb_bg_layout_light et_pb_module et_block_module preset--module--divi-text--default\"><div class=\"et_pb_text_inner\"><p>El ABC de la gesti\u00f3n de proyectos: P de PERT \u2013 T\u00e9cnica de evaluaci\u00f3n y revisi\u00f3n de programas<\/p>\n<h1>PERT al detalle: estrategias para una planificaci\u00f3n realista del tiempo<\/h1>\n<\/div><\/div><\/div><\/div><div class=\"et_pb_row_1 et_pb_row et_block_row\"><div class=\"et_pb_column_1 et_pb_column et_pb_column_4_4 et-last-child et_block_column et_pb_css_mix_blend_mode_passthrough\"><div class=\"et_pb_code_0 et_pb_code et_pb_module\"><div class=\"et_pb_code_inner\"><div class=\"shariff shariff-align-left shariff-widget-align-left\" style=\"display:none\"><ul class=\"shariff-buttons theme-round orientation-horizontal buttonsize-medium\"><li class=\"shariff-button facebook shariff-nocustomcolor\" style=\"background-color:#4273c8\"><a href=\"https:\/\/www.facebook.com\/sharer\/sharer.php?u=https%3A%2F%2Fparm.com%2Fes%2Fpert-en-el-punto-de-mira-estrategias-para-una-planificacion-temporal-realista%2F\" title=\"Bei Facebook teilen\" aria-label=\"Bei Facebook teilen\" role=\"button\" rel=\"nofollow\" class=\"shariff-link\" style=\"; 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PERT, o \u00abProgram Evaluation and Review Technique\u00bb, es una herramienta muy eficaz que ayuda a los responsables de proyectos a reducir las incertidumbres en la planificaci\u00f3n, a utilizar los recursos de forma eficiente y a terminar los proyectos a tiempo.<\/p>\n<\/div><\/div><\/div><\/div><div class=\"et_pb_row_4 et_pb_row et_block_row\"><div class=\"et_pb_column_4 et_pb_column et_pb_column_4_4 et-last-child et_block_column et_pb_css_mix_blend_mode_passthrough\"><div class=\"et_pb_text_2 et_pb_text et_pb_bg_layout_light et_pb_module et_block_module preset--module--divi-text--default\"><div class=\"et_pb_text_inner\"><div id=\"ez-toc-container\" class=\"ez-toc-v2_0_88 counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<span class=\"ez-toc-title-toggle\"><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/parm.com\/es\/pert-en-el-punto-de-mira-estrategias-para-una-planificacion-temporal-realista\/#%C2%BFQue_es_el_PERT\" >\u00bfQu\u00e9 es el PERT?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/parm.com\/es\/pert-en-el-punto-de-mira-estrategias-para-una-planificacion-temporal-realista\/#Los_fundamentos_del_PERT\" >Los fundamentos del PERT<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/parm.com\/es\/pert-en-el-punto-de-mira-estrategias-para-una-planificacion-temporal-realista\/#Creacion_de_un_diagrama_PERT\" >Creaci\u00f3n de un diagrama PERT<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/parm.com\/es\/pert-en-el-punto-de-mira-estrategias-para-una-planificacion-temporal-realista\/#Ventajas_del_metodo_PERT\" >Ventajas del m\u00e9todo PERT<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/parm.com\/es\/pert-en-el-punto-de-mira-estrategias-para-una-planificacion-temporal-realista\/#Retos_y_limitaciones_del_PERT\" >Retos y limitaciones del PERT<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/parm.com\/es\/pert-en-el-punto-de-mira-estrategias-para-una-planificacion-temporal-realista\/#Conclusion\" >Conclusi\u00f3n<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"%C2%BFQue_es_el_PERT\"><\/span>\u00bfQu\u00e9 es el PERT?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>La t\u00e9cnica PERT (Program Evaluation and Review Technique) la desarroll\u00f3 la Marina de los Estados Unidos en los a\u00f1os 50 para gestionar el programa Polaris, que consist\u00eda en el desarrollo de un sistema de defensa antimisiles bal\u00edsticos. El objetivo era crear una herramienta que tuviera en cuenta las incertidumbres en la planificaci\u00f3n temporal y, aun as\u00ed, ofreciera una base realista para la gesti\u00f3n del proyecto.<br \/>En esencia, PERT es un m\u00e9todo de planificaci\u00f3n basado en redes que representa las actividades de un proyecto en funci\u00f3n de su interdependencia y tiene en cuenta la duraci\u00f3n estimada de cada actividad. A diferencia de los m\u00e9todos tradicionales <a href=\"https:\/\/parm.com\/projektmanagement-abc-g-wie-gantt-diagramm\/\" target=\"_blank\" rel=\"noopener\" title=\"Gesti\u00f3n de proyectos ABC: G de diagrama de Gantt\">Diagramas de Gantt<\/a>, que representan secuencias lineales, el m\u00e9todo PERT se centra en las relaciones l\u00f3gicas y muestra el <a href=\"https:\/\/parm.com\/es\/abc-de-la-gestion-de-proyectos-c-de-camino-critico-2\/\" target=\"_blank\" rel=\"noopener\" title=\"ABC de la gesti\u00f3n de proyectos: C de camino cr\u00edtico\">camino cr\u00edtico<\/a>  de un proyecto. Esta ruta cr\u00edtica es fundamental, ya que determina la duraci\u00f3n m\u00ednima del proyecto.<\/p>\n<\/div><\/div><\/div><\/div><div class=\"et_pb_row_5 et_pb_row et_block_row\"><div class=\"et_pb_column_5 et_pb_column et_pb_column_4_4 et-last-child et_block_column et_pb_css_mix_blend_mode_passthrough\"><div class=\"et_pb_text_3 et_pb_text et_pb_bg_layout_light et_pb_module et_block_module preset--module--divi-text--default\"><div class=\"et_pb_text_inner\"><h2><span class=\"ez-toc-section\" id=\"Los_fundamentos_del_PERT\"><\/span>Los fundamentos del PERT<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>El PERT se basa en el supuesto de que la duraci\u00f3n de las actividades individuales del proyecto no se conoce con precisi\u00f3n y, por tanto, se especifica como una distribuci\u00f3n de probabilidad. Aqu\u00ed entran en juego tres estimaciones de tiempo:<\/p>\n<ol>\n<li><strong>Tiempo optimista<\/strong> (\u00aba\u00bb): la duraci\u00f3n m\u00e1s corta posible en condiciones ideales.<\/li>\n<li><strong>Tiempo pesimista<\/strong> (\u00abb\u00bb): la duraci\u00f3n m\u00e1xima que puede darse en condiciones desfavorables.<\/li>\n<li><strong>Tiempo m\u00e1s probable<\/strong> (\u00abm\u00bb): la estimaci\u00f3n m\u00e1s realista en condiciones normales.<\/li>\n<\/ol>\n<p>El tiempo previsto (\"te\") para cada actividad se calcula a partir de estos tres valores aplicando la siguiente f\u00f3rmula:<\/p>\n<p><strong>te = (a + 4m + b) \/ 6<\/strong><\/p>\n<p>Esta media ponderada tiene en cuenta que el tiempo m\u00e1s probable (m) tiene mayor peso que los dos valores extremos (a y b).<\/p>\n<ol><\/ol>\n<\/div><\/div><div class=\"et_pb_text_4 et_pb_text et_pb_bg_layout_light et_pb_module et_block_module preset--module--divi-text--default\"><div class=\"et_pb_text_inner\"><h2><span class=\"ez-toc-section\" id=\"Creacion_de_un_diagrama_PERT\"><\/span>Creaci\u00f3n de un diagrama PERT<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Un gr\u00e1fico PERT se crea en varios pasos:<\/p>\n<ol>\n<li><strong>Identificar tareas:<\/strong> Se definen todas las actividades necesarias y se desglosan en sus partes individuales.<br \/><em>Ejemplo:<\/em> Un equipo est\u00e1 planificando la organizaci\u00f3n de una conferencia. Las tareas principales son: elegir el lugar del evento, invitar a los participantes, preparar los materiales y hacer un ensayo general.<\/li>\n<li><strong>Establecer secuencias:<\/strong> Se determina el orden l\u00f3gico y las dependencias de las actividades. As\u00ed se aclara qu\u00e9 tareas dependen unas de otras y cu\u00e1les se pueden llevar a cabo en paralelo.<br \/><em>Ejemplo:<\/em> Hay que decidir el lugar del evento antes de invitar a los participantes y preparar los materiales. El ensayo general se hace despu\u00e9s de preparar los materiales y, antes de la conferencia, deben estar terminadas todas las dem\u00e1s tareas.<\/li>\n<li><strong>Haz estimaciones de tiempo:<\/strong> Se determinan las tres estimaciones de tiempo (a, m, b) y la duraci\u00f3n prevista (te) para cada actividad.<br \/><em><em>Ejemplo:<\/em><\/em><br \/>\n<table style=\"height: 0%; width: 100%; border-collapse: collapse; border-style: solid; margin-left: auto; margin-right: auto;\" border=\"1\" cellpadding=\"0\" cellspacing=\"0\">\n<tbody>\n<tr>\n<td style=\"width: 20%; text-align: left;\"><strong>Tarea<\/strong><\/td>\n<td style=\"width: 20%; text-align: left;\"><strong>a (optimismo)<\/strong><\/td>\n<td style=\"width: 20.7547%; text-align: left;\"><strong> m (probable)<\/strong><\/td>\n<td style=\"width: 19.2453%; text-align: left;\"><strong>b (pesimista)<\/strong><\/td>\n<td style=\"width: 20%; text-align: left;\"><strong>te (previsto)<\/strong><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 20%; text-align: left;\">Elige el lugar del evento<\/td>\n<td style=\"width: 20%; text-align: left;\">2 d\u00edas<\/td>\n<td style=\"width: 20.7547%; text-align: left;\">4 d\u00edas<\/td>\n<td style=\"width: 19.2453%; text-align: left;\">6 d\u00edas<\/td>\n<td style=\"width: 20%; text-align: left;\">4 d\u00edas<\/td>\n<\/tr>\n<tr>\n<td style=\"width: 20%; text-align: left;\">Enviar una invitaci\u00f3n<\/td>\n<td style=\"width: 20%; text-align: left;\">1 d\u00eda<\/td>\n<td style=\"width: 20.7547%; text-align: left;\">2 d\u00edas<\/td>\n<td style=\"width: 19.2453%; text-align: left;\">3 d\u00edas<\/td>\n<td style=\"width: 20%; text-align: left;\">2 d\u00edas<\/td>\n<\/tr>\n<tr>\n<td style=\"width: 20%; text-align: left;\">Preparar los materiales<\/td>\n<td style=\"width: 20%; text-align: left;\">3 d\u00edas<\/td>\n<td style=\"width: 20.7547%; text-align: left;\">5 d\u00edas<\/td>\n<td style=\"width: 19.2453%; text-align: left;\">7 d\u00edas<\/td>\n<td style=\"width: 20%; text-align: left;\">5 d\u00edas<\/td>\n<\/tr>\n<tr>\n<td style=\"width: 20%; text-align: left;\">Hacer un ensayo general<\/td>\n<td style=\"width: 20%; text-align: left;\">1 d\u00eda<\/td>\n<td style=\"width: 20.7547%; text-align: left;\">2 d\u00edas<\/td>\n<td style=\"width: 19.2453%; text-align: left;\">3 d\u00edas<\/td>\n<td style=\"width: 20%; text-align: left;\">2 d\u00edas<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/li>\n<li> <strong>Crear un diagrama de red:<\/strong> Las actividades se representan gr\u00e1ficamente en forma de red. En este caso, los nodos representan los eventos (hitos), mientras que las flechas simbolizan las actividades y las dependencias. Las flechas discontinuas suelen indicar una dependencia sin recursos, es decir, sin que haya que realizar ninguna actividad.<br \/><em>Ejemplo:<\/em> El diagrama de red muestra el orden de las tareas y las dependencias.<\/li>\n<li><strong>Determinar la ruta cr\u00edtica:<\/strong> La ruta cr\u00edtica se identifica calculando las rutas con la duraci\u00f3n total m\u00e1s larga. Esta ruta es clave, ya que cualquier retraso en estas actividades retrasar\u00e1 todo el proyecto.<br \/><em>Ejemplo:<\/em> En este caso, la ruta cr\u00edtica es: Elegir el lugar del evento \u2192 Preparar los materiales \u2192 Ensayo general \u2192 Conferencia. As\u00ed pues, la duraci\u00f3n m\u00ednima prevista del proyecto es de 11 d\u00edas.<\/li>\n<\/ol>\n<\/div><\/div><div class=\"et_pb_image_1 et_pb_image et_pb_module et_block_module\"><span class=\"et_pb_image_wrap\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/parm.com\/wp-content\/uploads\/2025\/01\/PERT_EN-5.jpg\" width=\"600\" height=\"309\" srcset=\"https:\/\/parm.com\/wp-content\/uploads\/2025\/01\/PERT_EN-5.jpg 600w, https:\/\/parm.com\/wp-content\/uploads\/2025\/01\/PERT_EN-5-480x247.jpg 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) 600px, 100vw\" class=\"wp-image-47164\" alt=\"Ejemplo de diagrama PERT\" title=\"PERT\" \/><\/span><\/div><div class=\"et_pb_text_5 et_pb_text et_pb_bg_layout_light et_pb_module et_block_module preset--module--divi-text--default\"><div class=\"et_pb_text_inner\"><h2><span class=\"ez-toc-section\" id=\"Ventajas_del_metodo_PERT\"><\/span>Ventajas del m\u00e9todo PERT<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>El uso del PERT ofrece numerosas ventajas:<\/p>\n<ul>\n<li><strong>Planificaci\u00f3n realista:<\/strong> al tener en cuenta las incertidumbres en la planificaci\u00f3n, el m\u00e9todo PERT ofrece previsiones temporales m\u00e1s realistas que los m\u00e9todos tradicionales.<\/li>\n<li><strong>Enfoque en las actividades cr\u00edticas:<\/strong> la ruta cr\u00edtica muestra claramente qu\u00e9 tareas requieren especial atenci\u00f3n para evitar retrasos en el proyecto.<\/li>\n<li><strong>Flexibilidad:<\/strong> este m\u00e9todo es ideal para proyectos con mucha incertidumbre o muchas variables desconocidas, ya que tiene en cuenta diferentes escenarios.<\/li>\n<li><strong>Transparencia:<\/strong> gracias a la representaci\u00f3n visual de la estructura del proyecto, todas las partes implicadas pueden ver f\u00e1cilmente qu\u00e9 tareas dependen unas de otras y c\u00f3mo afectan los cambios.<\/li>\n<li><strong>Detecci\u00f3n temprana de problemas:<\/strong> los posibles cuellos de botella o retrasos se pueden detectar a tiempo, lo que permite tomar medidas correctivas.<\/li>\n<\/ul>\n<\/div><\/div><div class=\"et_pb_text_6 et_pb_text et_pb_bg_layout_light et_pb_module et_block_module preset--module--divi-text--default\"><div class=\"et_pb_text_inner\"><h2><span class=\"ez-toc-section\" id=\"Retos_y_limitaciones_del_PERT\"><\/span>Retos y limitaciones del PERT<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>A pesar de sus puntos fuertes, el PERT tambi\u00e9n tiene algunos puntos d\u00e9biles que los directores de proyecto deben conocer:<\/p>\n<ul>\n<li><strong>Elaboraci\u00f3n laboriosa:<\/strong> El registro detallado de las actividades y las estimaciones de tiempo requiere mucho trabajo de planificaci\u00f3n, sobre todo en proyectos grandes y complejos.<\/li>\n<li><strong>Subjetividad:<\/strong> la precisi\u00f3n de las estimaciones de tiempo depende de la experiencia y el criterio de las personas que participan.<\/li>\n<li><strong>No es adecuado para proyectos sencillos:<\/strong> en proyectos peque\u00f1os o poco complejos, las ventajas de PERT no compensan el esfuerzo que supone.<\/li>\n<li><strong>No tiene en cuenta los costes:<\/strong> el m\u00e9todo PERT se centra exclusivamente en la planificaci\u00f3n temporal y no incluye aspectos financieros. Por eso, para una planificaci\u00f3n m\u00e1s completa del proyecto, deber\u00eda combinarse con otros m\u00e9todos, como el an\u00e1lisis del valor de los costes.<\/li>\n<\/ul>\n<\/div><\/div><\/div><\/div><div class=\"et_pb_row_6 et_pb_row et_block_row\"><div class=\"et_pb_column_6 et_pb_column et_pb_column_4_4 et-last-child et_block_column et_pb_css_mix_blend_mode_passthrough\"><div class=\"et_pb_text_7 et_pb_text et_pb_bg_layout_light et_pb_module et_block_module preset--module--divi-text--default\"><div class=\"et_pb_text_inner\"><h2><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span>Conclusi\u00f3n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>La t\u00e9cnica de evaluaci\u00f3n y revisi\u00f3n de programas (PERT) es una herramienta muy \u00fatil en la gesti\u00f3n de proyectos, sobre todo para proyectos complejos con estimaciones de tiempo inciertas. Ofrece un enfoque estructurado para planificar y controlar proyectos, y ayuda a detectar y minimizar los riesgos desde el principio. Sin embargo, este m\u00e9todo requiere un gran esfuerzo de planificaci\u00f3n y estimaciones de tiempo bien fundamentadas. No obstante, al combinar PERT con otros m\u00e9todos, los responsables de proyectos pueden garantizar una planificaci\u00f3n integral y llevar los proyectos al \u00e9xito de forma m\u00e1s eficiente.<\/p>\n<\/div><\/div><\/div><\/div><div class=\"et_pb_row_7 et_pb_row et_block_row\"><div class=\"et_pb_column_7 et_pb_column et_pb_column_1_2 et_block_column et_pb_css_mix_blend_mode_passthrough\"><div class=\"et_pb_text_8 et_pb_text et_pb_bg_layout_light et_pb_module et_block_module preset--module--divi-text--default\"><div class=\"et_pb_text_inner\"><p>El software de gesti\u00f3n de proyectos myPARM es compatible con metodolog\u00edas y est\u00e1ndares establecidos, como PRINCE2, PMBOK (PMI) o ICB (IPMA), as\u00ed como con modelos de procesos espec\u00edficos de cada empresa. Con funciones como los diagramas de Gantt, la planificaci\u00f3n de hitos y el an\u00e1lisis de la ruta cr\u00edtica, myPARM proporciona las herramientas que necesitas para integrar eficazmente el PERT en la planificaci\u00f3n de tus proyectos. El software tambi\u00e9n permite la personalizaci\u00f3n para satisfacer los requisitos espec\u00edficos de tu empresa sin necesidad de conocimientos de programaci\u00f3n.<\/p>\n<\/div><\/div><\/div><div class=\"et_pb_column_8 et_pb_column et_pb_column_1_2 et-last-child et_block_column et_pb_css_mix_blend_mode_passthrough\"><div class=\"et_pb_text_9 et_pb_text et_pb_bg_layout_light et_pb_module et_block_module preset--module--divi-text--default\"><div class=\"et_pb_text_inner\"><p>M\u00e1s informaci\u00f3n sobre el software de gesti\u00f3n de proyectos y carteras myPARM:<\/p>\n<\/div><\/div><div class=\"et_pb_module et_pb_button_module_wrapper et_pb_button_0_wrapper preset--group--divi-button--divi-button--hi917qs--default_wrapper preset--module--divi-button--default_wrapper\"><a class=\"et_pb_button_0 et_pb_button et_pb_bg_layout_light et_pb_module et_block_module preset--group--divi-button--divi-button--hi917qs--default preset--module--divi-button--default\" href=\"https:\/\/parm.com\/es\/gestion-de-proyectos\/\">M\u00e1s informaci\u00f3n sobre myPARM<\/a><\/div><div class=\"et_pb_text_10 et_pb_text et_pb_bg_layout_light et_pb_module et_block_module preset--module--divi-text--default\"><div class=\"et_pb_text_inner\"><p>\u00bfQuieres conocer myPARM en una demostraci\u00f3n? Entonces, \u00a1concierta ahora una cita con nosotros!<\/p>\n<\/div><\/div><div class=\"et_pb_module et_pb_button_module_wrapper et_pb_button_1_wrapper preset--group--divi-button--divi-button--hi917qs--default_wrapper preset--module--divi-button--default_wrapper\"><a class=\"et_pb_button_1 et_pb_button et_pb_bg_layout_light et_pb_module et_block_module preset--group--divi-button--divi-button--hi917qs--default preset--module--divi-button--default\" href=\"https:\/\/calendly.com\/parmag\/myparm-webdemo-es\" target=\"_blank\">PEDIR CITA<\/a><\/div><\/div><\/div><div class=\"et_pb_row_8 et_pb_row et_block_row\"><div class=\"et_pb_column_9 et_pb_column et_pb_column_4_4 et-last-child et_block_column et_pb_css_mix_blend_mode_passthrough\"><div class=\"et_pb_code_1 et_pb_code et_pb_module\"><div class=\"et_pb_code_inner\"><div class=\"shariff shariff-align-left shariff-widget-align-left\" style=\"display:none\"><ul class=\"shariff-buttons theme-round orientation-horizontal buttonsize-medium\"><li class=\"shariff-button facebook shariff-nocustomcolor\" style=\"background-color:#4273c8\"><a href=\"https:\/\/www.facebook.com\/sharer\/sharer.php?u=https%3A%2F%2Fparm.com%2Fes%2Fpert-en-el-punto-de-mira-estrategias-para-una-planificacion-temporal-realista%2F\" title=\"Bei Facebook teilen\" aria-label=\"Bei Facebook teilen\" role=\"button\" rel=\"nofollow\" class=\"shariff-link\" style=\"; 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