{"id":8220,"date":"2022-11-28T09:00:43","date_gmt":"2022-11-28T08:00:43","guid":{"rendered":"https:\/\/www.orizoconsult.com\/company-news-fr\/delay-analysis-101-series-4-types-critical-path-must-know\/"},"modified":"2024-06-17T11:30:04","modified_gmt":"2024-06-17T09:30:04","slug":"delay-analysis-101-series-4-types-critical-path-must-know","status":"publish","type":"post","link":"https:\/\/www.orizoconsult.com\/fr\/insights-fr\/delay-analysis-101-series-4-types-critical-path-must-know\/","title":{"rendered":"S\u00e9ries 101 sur l\u2019analyse des retards \u2013 Les 4 types de chemin critique que vous devez conna\u00eetre"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"8220\" class=\"elementor elementor-8220 elementor-6009\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-49b31a8 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"49b31a8\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-no\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-fed9b68\" data-id=\"fed9b68\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-1dc570e elementor-widget elementor-widget-image\" data-id=\"1dc570e\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" src=\"https:\/\/www.orizoconsult.com\/wp-content\/uploads\/elementor\/thumbs\/pexels-pixabay-258510-pys9j3xpw9o5i8sl0dnlmgnt8w78gstjl07gctfpu0.jpg\" title=\"pexels-pixabay-258510\" alt=\"pexels-pixabay-258510\" loading=\"lazy\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2c02592 elementor-widget elementor-widget-spacer\" data-id=\"2c02592\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-3ec0911 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"3ec0911\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-553c977\" data-id=\"553c977\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-386c5d4 elementor-align-center elementor-widget elementor-widget-button\" data-id=\"386c5d4\" data-element_type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/www.linkedin.com\/newsletters\/delay-analysis-101-7002958232218419201\/\" target=\"_blank\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"elementor-button-icon elementor-align-icon-left\">\n\t\t\t\t<i aria-hidden=\"true\" class=\"fab fa-linkedin\"><\/i>\t\t\t<\/span>\n\t\t\t\t\t\t<span class=\"elementor-button-text\">Visitez le bulletin d'information<\/span>\n\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-64b5eb3\" data-id=\"64b5eb3\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-677da3d elementor-widget elementor-widget-text-editor\" data-id=\"677da3d\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Cet article fait partie des S\u00e9ries 101 sur l\u2019analyse des retards, qui est \u00e9galement disponible sous le bulletin de LinkedIn.<\/p>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<div class=\"elementor-element elementor-element-9c31a1b elementor-widget elementor-widget-spacer\" data-id=\"9c31a1b\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-73a1198 elementor-widget elementor-widget-text-editor\" data-id=\"73a1198\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><i>L&rsquo;un des principaux indicateurs de performance d&rsquo;un projet est le temps : quand est ce que le projet sera-t-il achev\u00e9? Le temps d\u00e9termine les co\u00fbts fixes assum\u00e9s par le contractant et les co\u00fbts de financement assum\u00e9s par le ma\u00eetre d&rsquo;ouvrage. Les co\u00fbts fixes les plus importants d&rsquo;un projet sont g\u00e9n\u00e9ralement li\u00e9s aux frais g\u00e9n\u00e9raux indirects du projet (installations du site, direction g\u00e9n\u00e9rale, etc.), qui sont \u00e9troitement li\u00e9s \u00e0 la date d&rsquo;ach\u00e8vement du projet. D&rsquo;autre part, les employeurs imposeront des p\u00e9nalit\u00e9s de retard ou des dommages-int\u00e9r\u00eats forfaitaires afin d&rsquo;obtenir r\u00e9paration si le contractant livre en retard et augmente ainsi le co\u00fbt de financement, g\u00e9n\u00e8re une perte de revenus, d&rsquo;opportunit\u00e9s, etc.   <\/i><\/p>\n<p><i>Il est donc \u00e9vident qu&rsquo;il faut contr\u00f4ler \u00e9troitement la date d&rsquo;ach\u00e8vement du projet. Les projets de construction complexes sont souvent constitu\u00e9s de milliers d&rsquo;activit\u00e9s. Parfois, des centaines d&rsquo;entre elles progressent en m\u00eame temps. Pourtant, le bon d\u00e9roulement du projet d\u00e9pend souvent du bon d\u00e9roulement de quelques-unes de ces activit\u00e9s seulement: on dit qu&rsquo;elles sont <u>critiques<\/u>, et c&rsquo;est ce concept que notre fondateur <a href=\"\">Ama\u00ebl Olivier<\/a> va explorer dans cet article.   <\/i><\/p>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d491b94 elementor-widget elementor-widget-spacer\" data-id=\"d491b94\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-46b367d elementor-widget elementor-widget-text-editor\" data-id=\"46b367d\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<h2>R\u00e9sum\u00e9<\/h2>\n<p>Le chemin critique est un outil qui permet de surveiller les activit\u00e9s qui n\u00e9cessitent une attention particuli\u00e8re afin de compl\u00e9ter un projet dans les d\u00e9lais. Il existe 4 types de chemin critique, chacun r\u00e9pondant \u00e0 une question diff\u00e9rente: <\/p>\n<ul>\n<li>Le chemin critique tel que pr\u00e9vu \u2013 <i>Avant le d\u00e9but des travaux, quelle \u00e9tait la s\u00e9quence d&rsquo;activit\u00e9s dont on pouvait raisonnablement s&rsquo;attendre \u00e0 ce qu&rsquo;elle conduise \u00e0 la date d&rsquo;ach\u00e8vement du projet?<\/i><\/li>\n<li>Le chemin critique tel que r\u00e9alis\u00e9 \u2013 <i>Une fois les travaux achev\u00e9s, quelle a \u00e9t\u00e9 la s\u00e9quence d&rsquo;activit\u00e9s qui a conduit la date d&rsquo;ach\u00e8vement du projet?<\/i><\/li>\n<li>Le chemin critique contemporain \u2013 <i>A un moment donn\u00e9 du projet, quelle \u00e9tait la s\u00e9quence d&rsquo;activit\u00e9s dont on pouvait raisonnablement s&rsquo;attendre \u00e0 ce qu&rsquo;elle conduise \u00e0 la date d&rsquo;ach\u00e8vement du projet?<\/i><\/li>\n<li>Le chemin critique r\u00e9el \u2013 <i>Quelle \u00e9tait la s\u00e9quence des activit\u00e9s qui \u00e9taient raisonnablement per\u00e7ues comme conduisant \u00e0 la date d&rsquo;ach\u00e8vement du projet au moment o\u00f9 elles \u00e9taient en cours?<\/i><\/li>\n<\/ul>\n<h2> <\/h2>\n<h2>Activit\u00e9s critiques et retards<\/h2>\n<p>Une activit\u00e9 est critique lorsqu&rsquo;une modification de sa dur\u00e9e entra\u00eene une modification de la dur\u00e9e du projet. Par cons\u00e9quent, tout retard dans une activit\u00e9 critique entra\u00eene un retard dans la date d&rsquo;ach\u00e8vement du projet. Ceci est illustr\u00e9 dans l&rsquo;animation ci-dessous.  <\/p>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7f4a0e6 elementor-widget elementor-widget-spacer\" data-id=\"7f4a0e6\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-795b2db elementor-widget elementor-widget-image\" data-id=\"795b2db\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"2025\" height=\"1080\" src=\"data:image\/svg+xml;charset=utf-8,%3Csvg xmlns%3D'http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg' viewBox%3D'0 0 2025 1080'%2F%3E\" data-src=\"https:\/\/www.orizoconsult.com\/wp-content\/uploads\/2022\/11\/Fig-1.-Critical-v-not-critical-delay.gif\" class=\"lazy-load attachment-full size-full wp-image-8228\" alt=\"\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Figure 1: Un retard critique affecte la date de fin du projet<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-dc92b78 elementor-widget elementor-widget-spacer\" data-id=\"dc92b78\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d61cdac elementor-widget elementor-widget-text-editor\" data-id=\"d61cdac\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<h2>Calcul du chemin critique<\/h2>\n<p>Sur un planning de projet, identifiez les activit\u00e9s critiques et cachez les autres: le r\u00e9seau partiel d&rsquo;activit\u00e9s qui en r\u00e9sulte est ce que nous appelons le chemin critique. Souvent, le r\u00e9seau est constitu\u00e9 d&rsquo;une s\u00e9quence d&rsquo;activit\u00e9s qui commence au d\u00e9but du projet et se termine \u00e0 la date d&rsquo;ach\u00e8vement du projet. Plus rarement, il peut y avoir plusieurs s\u00e9quences qui se d\u00e9roulent en parall\u00e8le : on parle alors de chemins critiques concurrents, qui feront l&rsquo;objet d&rsquo;un article s\u00e9par\u00e9.\n  <\/p>\n<p>L&rsquo;illustration anim\u00e9e ci-dessous donne un exemple de chemin critique pour un projet.\n<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-048e148 elementor-widget elementor-widget-spacer\" data-id=\"048e148\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9c99a1a elementor-widget elementor-widget-image\" data-id=\"9c99a1a\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1620\" height=\"1080\" src=\"data:image\/svg+xml;charset=utf-8,%3Csvg xmlns%3D'http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg' viewBox%3D'0 0 1620 1080'%2F%3E\" data-src=\"https:\/\/www.orizoconsult.com\/wp-content\/uploads\/2022\/11\/Fig-2.-Critical-path-from-network.gif\" class=\"lazy-load attachment-full size-full wp-image-8221\" alt=\"\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Figure 2: Chemin critique dans un r\u00e9seau d'activit\u00e9s<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9d012fe elementor-widget elementor-widget-spacer\" data-id=\"9d012fe\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4052aa6 elementor-widget elementor-widget-text-editor\" data-id=\"4052aa6\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>D&rsquo;un point de vue algorithmique, le chemin critique est assez simple \u00e0 calculer:<\/p>\n<ol>\n<li>Faire en sorte que toutes les activit\u00e9s commencent le plus t\u00f4t possible, en tenant compte des contraintes (liens logiques) telles que \u00ab\u00a0ne pas commencer B tant que A n&rsquo;est pas termin\u00e9\u00a0\u00bb \u2013 c&rsquo;est ce que l&rsquo;on appelle le passe en avant.<\/li>\n<li>Ensuite, \u00e0 partir de la date d&rsquo;ach\u00e8vement du projet, v\u00e9rifiez l&rsquo;activit\u00e9 pr\u00e9c\u00e9dente qui l&rsquo;a emp\u00each\u00e9 de s&rsquo;achever plus t\u00f4t. Ensuite, il faut remonter aux activit\u00e9s pr\u00e9c\u00e9dentes de cette activit\u00e9 pr\u00e9c\u00e9dente, et ainsi de suite jusqu&rsquo;au d\u00e9but du projet \u2013 c&rsquo;est ce que l&rsquo;on appelle le passe en arri\u00e8re. <\/li>\n<li>Le trac\u00e9, plus fr\u00e9quemment connu sous le nom de <i>chemin le plus long<\/i>, est le chemin critique.<\/li>\n<\/ol>\n<p>C&rsquo;est ce que montre l&rsquo;illustration anim\u00e9e ci-dessous.<\/p>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6baa9cb elementor-widget elementor-widget-spacer\" data-id=\"6baa9cb\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f7c524f elementor-widget elementor-widget-image\" data-id=\"f7c524f\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1620\" height=\"1080\" src=\"data:image\/svg+xml;charset=utf-8,%3Csvg xmlns%3D'http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg' viewBox%3D'0 0 1620 1080'%2F%3E\" data-src=\"https:\/\/www.orizoconsult.com\/wp-content\/uploads\/2022\/11\/Fig-3.-Critical-path-passes.gif\" class=\"lazy-load attachment-full size-full wp-image-8222\" alt=\"\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Figure 3: Calcul du chemin critique avec des passes avant et arri\u00e8re (animation)<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ed01b8e elementor-widget elementor-widget-spacer\" data-id=\"ed01b8e\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7b5af9f elementor-widget elementor-widget-text-editor\" data-id=\"7b5af9f\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\tAvec des projets compos\u00e9s de milliers d&rsquo;activit\u00e9s connect\u00e9es par des milliers de liens logiques, il devient rapidement pratique de d\u00e9charger la t\u00e2che r\u00e9p\u00e9titive sur un logiciel de planification ou de programmation tel que Oracle Primavera P6, Microsoft Project ou Asta PowerProject.\n<h2>Perspectives de chemin critique<\/h2>\nTout comme nous pouvons rencontrer deux types de <a href=\"https:\/\/www.orizoconsult.com\/insights\/what-are-prospective-and-retrospective-delays\/\">perspectives de mesure des retards<\/a>, ces m\u00eames perspectives s&rsquo;appliquent aux chemins critiques. Un chemin critique prospectif est calcul\u00e9 sur la base de la dur\u00e9e pr\u00e9vue et des liens logiques des activit\u00e9s futures qui n&rsquo;ont pas encore \u00e9t\u00e9 r\u00e9alis\u00e9es. Un chemin critique r\u00e9trospectif est calcul\u00e9 sur la base de la dur\u00e9e et des liens logiques des activit\u00e9s pass\u00e9es qui ont d\u00e9j\u00e0 \u00e9t\u00e9 r\u00e9alis\u00e9es. Comme nous le verrons plus en d\u00e9tail dans <a href=\"\">cet article<\/a>, le chemin critique prospectif est th\u00e9orique, tandis que le chemin critique r\u00e9trospectif est factuel. \n\n C&rsquo;est pourquoi de nombreux experts en retards ont tendance \u00e0 privil\u00e9gier un chemin critique r\u00e9trospectif. Cette d\u00e9cision n&rsquo;est toutefois pas aussi \u00e9vidente qu&rsquo;il n&rsquo;y para\u00eet; en effet, il est souvent inad\u00e9quat de se fier \u00e0 ce type de chemin sans proc\u00e9der \u00e0 des v\u00e9rifications. Ceci sera l&rsquo;objet d&rsquo;un prochain article. De ces deux perspectives de chemin critique, on peut d\u00e9duire quatre types de chemin critique. \n \n\n\n<h3>Le chemin critique tel que pr\u00e9vu (enti\u00e8rement prospectif)<\/h3>\nLe chemin critique tel que pr\u00e9vu est le chemin critique calcul\u00e9 sur un r\u00e9seau d&rsquo;activit\u00e9s qui refl\u00e8te la mani\u00e8re dont les travaux sont cens\u00e9s \u00eatre ex\u00e9cut\u00e9s: le <i>planning tel que pr\u00e9vu<\/i>. Le planning tel que pr\u00e9vu est particuli\u00e8rement utile lorsqu&rsquo;il s&rsquo;agit du planning de r\u00e9f\u00e9rence, auquel cas le chemin critique tel que pr\u00e9vu peut \u00eatre appel\u00e9 chemin critique de r\u00e9f\u00e9rence. L&rsquo;illustration ci-dessous montre le <i>chemin critique tel que pr\u00e9vu<\/i> du planning de r\u00e9f\u00e9rence d&rsquo;un mini-projet th\u00e9orique. \n\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a0d8840 elementor-widget elementor-widget-spacer\" data-id=\"a0d8840\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-991ee34 elementor-widget elementor-widget-image\" data-id=\"991ee34\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"673\" src=\"data:image\/svg+xml;charset=utf-8,%3Csvg xmlns%3D'http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg' viewBox%3D'0 0 1024 673'%2F%3E\" data-src=\"https:\/\/www.orizoconsult.com\/wp-content\/uploads\/2022\/11\/Fig-4.-As-planned-critical-path-1024x673.png\" class=\"lazy-load attachment-large size-large wp-image-8223\" alt=\"\" data-srcset=\"https:\/\/www.orizoconsult.com\/wp-content\/uploads\/2022\/11\/Fig-4.-As-planned-critical-path-1024x673.png 1024w, https:\/\/www.orizoconsult.com\/wp-content\/uploads\/2022\/11\/Fig-4.-As-planned-critical-path-300x197.png 300w, https:\/\/www.orizoconsult.com\/wp-content\/uploads\/2022\/11\/Fig-4.-As-planned-critical-path-768x505.png 768w, https:\/\/www.orizoconsult.com\/wp-content\/uploads\/2022\/11\/Fig-4.-As-planned-critical-path.png 1437w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Figure 4 : Le chemin critique tel que pr\u00e9vu, correspondant souvent au chemin critique de r\u00e9f\u00e9rence<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ebe7e90 elementor-widget elementor-widget-spacer\" data-id=\"ebe7e90\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4dfe1d0 elementor-widget elementor-widget-text-editor\" data-id=\"4dfe1d0\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\tLe chemin critique tel que pr\u00e9vu r\u00e9pond \u00e0 la question suivante: <i>avant le d\u00e9but des travaux, quelle \u00e9tait la s\u00e9quence d&rsquo;activit\u00e9s dont on pouvait raisonnablement s&rsquo;attendre \u00e0 ce qu&rsquo;elle conduise \u00e0 la date d&rsquo;ach\u00e8vement du projet ?<\/i>En raison de son caract\u00e8re prospectif, il peut \u00eatre calcul\u00e9 avant le d\u00e9but des travaux.\n<h3>Le chemin critique tel que r\u00e9alis\u00e9 (enti\u00e8rement r\u00e9trospectif)<\/h3>\nLe chemin critique tel que r\u00e9alis\u00e9 est le chemin critique calcul\u00e9 sur un r\u00e9seau d&rsquo;activit\u00e9s qui refl\u00e8te la mani\u00e8re dont les travaux ont \u00e9t\u00e9 r\u00e9ellement ex\u00e9cut\u00e9s: le <i>planning tel que r\u00e9alis\u00e9<\/i>. L&rsquo;illustration ci-dessous montre le chemin critique tel que r\u00e9alis\u00e9 de notre mini-projet th\u00e9orique, o\u00f9 les activit\u00e9s B, C, D et F ont subi des retards.\n\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ace18d5 elementor-widget elementor-widget-spacer\" data-id=\"ace18d5\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-87bffb9 elementor-widget elementor-widget-image\" data-id=\"87bffb9\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"640\" src=\"data:image\/svg+xml;charset=utf-8,%3Csvg xmlns%3D'http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg' viewBox%3D'0 0 1024 640'%2F%3E\" data-src=\"https:\/\/www.orizoconsult.com\/wp-content\/uploads\/2022\/11\/Fig-5.-As-built-critical-path-1024x640.png\" class=\"lazy-load attachment-large size-large wp-image-8224\" alt=\"\" data-srcset=\"https:\/\/www.orizoconsult.com\/wp-content\/uploads\/2022\/11\/Fig-5.-As-built-critical-path-1024x640.png 1024w, https:\/\/www.orizoconsult.com\/wp-content\/uploads\/2022\/11\/Fig-5.-As-built-critical-path-300x187.png 300w, https:\/\/www.orizoconsult.com\/wp-content\/uploads\/2022\/11\/Fig-5.-As-built-critical-path-768x480.png 768w, https:\/\/www.orizoconsult.com\/wp-content\/uploads\/2022\/11\/Fig-5.-As-built-critical-path.png 1511w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Figure 5: Chemin critique tel que r\u00e9alis\u00e9<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c886671 elementor-widget elementor-widget-spacer\" data-id=\"c886671\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-cea25d7 elementor-widget elementor-widget-text-editor\" data-id=\"cea25d7\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Le chemin critique tel que r\u00e9alis\u00e9 r\u00e9pond \u00e0 la question suivante: <i>une fois les travaux achev\u00e9s, quelle a \u00e9t\u00e9 la s\u00e9quence d&rsquo;activit\u00e9s qui s&rsquo;est r\u00e9v\u00e9l\u00e9e conduire \u00e0 la date d&rsquo;ach\u00e8vement du projet?<\/i> En raison de sa nature r\u00e9trospective, il ne peut \u00eatre calcul\u00e9 qu&rsquo;une fois les travaux sont achev\u00e9s.<\/p>\n<h3>Le chemin critique contemporain (hybride)<\/h3>\n<p>Le chemin critique contemporain est le chemin critique calcul\u00e9 sur un r\u00e9seau o\u00f9 certaines activit\u00e9s refl\u00e8tent la fa\u00e7on dont les travaux ont \u00e9t\u00e9 r\u00e9alis\u00e9s jusqu&rsquo;\u00e0 cette date, et d&rsquo;autres refl\u00e8tent la fa\u00e7on dont le reste des travaux devrait \u00eatre r\u00e9alis\u00e9 \u00e0 partir de cette m\u00eame date. Dans ce cas, la date est appel\u00e9e <i>date des donn\u00e9es<\/i>: pour un planning donn\u00e9, c&rsquo;est la date qui fixe la limite entre le pass\u00e9 et le futur. <\/p>\n<p>Le chemin critique contemporain est le r\u00e9sultat du chemin critique prospectif de la date d&rsquo;ach\u00e8vement du projet \u00e0 la date des donn\u00e9es, suivi du chemin critique r\u00e9trospectif de la date des donn\u00e9es \u00e0 la date de d\u00e9marrage du projet.<\/p>\n<p>L&rsquo;illustration ci-dessous montre le chemin critique contemporain de notre projet th\u00e9orique, \u00e0 la date du 1<sup>er<\/sup> mars. Notez que le chemin critique part de l&rsquo;ach\u00e8vement du projet en passant par les activit\u00e9s pr\u00e9vues, puis par les activit\u00e9s r\u00e9alis\u00e9es jusqu&rsquo;\u00e0 la date de d\u00e9but du projet. <\/p>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-884c807 elementor-widget elementor-widget-spacer\" data-id=\"884c807\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d4c51cb elementor-widget elementor-widget-image\" data-id=\"d4c51cb\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"729\" src=\"data:image\/svg+xml;charset=utf-8,%3Csvg xmlns%3D'http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg' viewBox%3D'0 0 1024 729'%2F%3E\" data-src=\"https:\/\/www.orizoconsult.com\/wp-content\/uploads\/2022\/11\/Fig-6.-Contemporaneous-critical-path-1024x729.png\" class=\"lazy-load attachment-large size-large wp-image-8225\" alt=\"\" data-srcset=\"https:\/\/www.orizoconsult.com\/wp-content\/uploads\/2022\/11\/Fig-6.-Contemporaneous-critical-path-1024x729.png 1024w, https:\/\/www.orizoconsult.com\/wp-content\/uploads\/2022\/11\/Fig-6.-Contemporaneous-critical-path-300x214.png 300w, https:\/\/www.orizoconsult.com\/wp-content\/uploads\/2022\/11\/Fig-6.-Contemporaneous-critical-path-768x547.png 768w, https:\/\/www.orizoconsult.com\/wp-content\/uploads\/2022\/11\/Fig-6.-Contemporaneous-critical-path.png 1485w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Figure 6: Chemin critique contemporain au 1er mars<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b238ee9 elementor-widget elementor-widget-spacer\" data-id=\"b238ee9\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0dca387 elementor-widget elementor-widget-text-editor\" data-id=\"0dca387\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Le chemin critique contemporain peut \u00eatre calcul\u00e9 \u00e0 tout moment \u2013 ou date des donn\u00e9es \u2013 pendant l&rsquo;avancement des travaux. Il r\u00e9pond \u00e0 la question suivante: <i>\u00e0 une date donn\u00e9e, quelle \u00e9tait la s\u00e9quence d&rsquo;activit\u00e9s dont on pouvait raisonnablement s&rsquo;attendre \u00e0 ce qu&rsquo;elle conduise \u00e0 la date d&rsquo;ach\u00e8vement du projet?<\/i> <\/p>\n<p>Il est int\u00e9ressant de noter que s&rsquo;il est calcul\u00e9 au tout d\u00e9but du projet, il correspond au chemin critique tel que pr\u00e9vu. De m\u00eame, s&rsquo;il est calcul\u00e9 \u00e0 la toute fin du projet, il correspond au chemin critique tel que r\u00e9alis\u00e9. <\/p>\n<h3>Le chemin critique r\u00e9el<\/h3>\n<p>Le chemin critique r\u00e9el d&rsquo;un projet est bas\u00e9 sur une compilation des chemins critiques contemporains de toutes les dates de donn\u00e9es de ce projet. C&rsquo;est la s\u00e9quence de ces activit\u00e9s qui \u00e9tait critique lorsqu&rsquo;elles progressaient. <\/p>\n<p>Pour calculer le chemin critique: (i) choisissez une date de donn\u00e9es proche de la date de d\u00e9but du projet, (ii) identifiez le chemin critique contemporain \u00e0 cette date de donn\u00e9es, et (iii) notez l&rsquo;activit\u00e9 critique qui \u00e9tait en cours \u00e0 cette date: l&rsquo;activit\u00e9 critique contemporaine (souvent une seule). R\u00e9p\u00e9tez les \u00e9tapes (i) \u00e0 (iii) en <i>augmentant l\u00e9g\u00e8rement<\/i> la date des donn\u00e9es, jusqu&rsquo;\u00e0 ce que vous atteigniez la fin du projet. Le chemin critique r\u00e9el est la s\u00e9quence des activit\u00e9s que vous avez not\u00e9e. Les p\u00e9riodes de temps impliqu\u00e9es par les \u00ab\u00a0petits incr\u00e9ments\u00a0\u00bb devraient id\u00e9alement rester aussi courtes que possible, mais pour des raisons pratiques et de disponibilit\u00e9 des donn\u00e9es, les incr\u00e9ments sont souvent mensuels, trimestriels ou parfois m\u00eame plus longs.        <\/p>\n<p>L&rsquo;illustration anim\u00e9e ci-dessous montre les chemins critiques contemporains de notre mini-projet th\u00e9orique, pour des incr\u00e9ments mensuels de la date des donn\u00e9es.<\/p>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4a0559d elementor-widget elementor-widget-spacer\" data-id=\"4a0559d\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9c74ad2 elementor-widget elementor-widget-image\" data-id=\"9c74ad2\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1836\" height=\"1080\" src=\"data:image\/svg+xml;charset=utf-8,%3Csvg xmlns%3D'http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg' viewBox%3D'0 0 1836 1080'%2F%3E\" data-src=\"https:\/\/www.orizoconsult.com\/wp-content\/uploads\/2022\/11\/Fig-7.-All-contemporaneous-critical-paths-1.gif\" class=\"lazy-load attachment-full size-full wp-image-8229\" alt=\"\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Figure 7: Ensemble des chemins critiques contemporains, mis \u00e0 jour mensuellement<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-573691c elementor-widget elementor-widget-spacer\" data-id=\"573691c\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-97610e1 elementor-widget elementor-widget-text-editor\" data-id=\"97610e1\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>L&rsquo;objectif du chemin critique r\u00e9el est d&rsquo;identifier la s\u00e9quence d&rsquo;activit\u00e9s qui requiert la plus grande attention par les parties prenantes, en fonction de ce qu&rsquo;elles savent \u00e0 ce moment-l\u00e0. En d&rsquo;autres termes, il suppose que les parties ne connaissaient pas l&rsquo;avenir. J&rsquo;aime d\u00e9finir le chemin critique r\u00e9el comme la chronologie des activit\u00e9s qui ont emp\u00each\u00e9 le directeur ou le planificateur du projet de dormir la nuit.  <\/p>\n<p>L&rsquo;illustration ci-dessous montre les activit\u00e9s contemporaines critiques pour chacune des mises \u00e0 jour mensuelles <span style=\"color: var(--the7-base-color); letter-spacing: var(--the7-base-letter-spacing); text-transform: var(--the7-base-text-transform); word-spacing: normal;\">de notre mini-projet th\u00e9orique.<\/span><\/p>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-314a77c elementor-widget elementor-widget-spacer\" data-id=\"314a77c\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-97d6a60 elementor-widget elementor-widget-image\" data-id=\"97d6a60\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"522\" src=\"data:image\/svg+xml;charset=utf-8,%3Csvg xmlns%3D'http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg' viewBox%3D'0 0 1024 522'%2F%3E\" data-src=\"https:\/\/www.orizoconsult.com\/wp-content\/uploads\/2022\/11\/Fig-8.-Activities-contemporaneously-critical-1024x522.png\" class=\"lazy-load attachment-large size-large wp-image-8226\" alt=\"\" data-srcset=\"https:\/\/www.orizoconsult.com\/wp-content\/uploads\/2022\/11\/Fig-8.-Activities-contemporaneously-critical-1024x522.png 1024w, https:\/\/www.orizoconsult.com\/wp-content\/uploads\/2022\/11\/Fig-8.-Activities-contemporaneously-critical-300x153.png 300w, https:\/\/www.orizoconsult.com\/wp-content\/uploads\/2022\/11\/Fig-8.-Activities-contemporaneously-critical-768x392.png 768w, https:\/\/www.orizoconsult.com\/wp-content\/uploads\/2022\/11\/Fig-8.-Activities-contemporaneously-critical-1536x783.png 1536w, https:\/\/www.orizoconsult.com\/wp-content\/uploads\/2022\/11\/Fig-8.-Activities-contemporaneously-critical.png 1893w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Figure 8: Les activit\u00e9s critiques simultan\u00e9es en progr\u00e8s<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f0779e8 elementor-widget elementor-widget-spacer\" data-id=\"f0779e8\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-43b5b4b elementor-widget elementor-widget-text-editor\" data-id=\"43b5b4b\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Les lacunes entre les mises \u00e0 jour mensuelles sont ensuite combl\u00e9es en extrapolant les activit\u00e9s critiques et en tenant compte des \u00e9v\u00e9nements cl\u00e9s qui ont eu lieu entre les mises \u00e0 jour. Par exemple, le retard pris par l&rsquo;activit\u00e9 D juste apr\u00e8s la mise \u00e0 jour du 1er f\u00e9vrier est tr\u00e8s probablement la raison pour laquelle l&rsquo;activit\u00e9 D \u00e9tait critique lors de la mise \u00e0 jour du 1er mars. <\/p>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b631212 elementor-widget elementor-widget-spacer\" data-id=\"b631212\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-85e2d21 elementor-widget elementor-widget-image\" data-id=\"85e2d21\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"526\" src=\"data:image\/svg+xml;charset=utf-8,%3Csvg xmlns%3D'http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg' viewBox%3D'0 0 1024 526'%2F%3E\" data-src=\"https:\/\/www.orizoconsult.com\/wp-content\/uploads\/2022\/11\/Fig-9.-Actual-critical-path-1024x526.png\" class=\"lazy-load attachment-large size-large wp-image-8227\" alt=\"\" data-srcset=\"https:\/\/www.orizoconsult.com\/wp-content\/uploads\/2022\/11\/Fig-9.-Actual-critical-path-1024x526.png 1024w, https:\/\/www.orizoconsult.com\/wp-content\/uploads\/2022\/11\/Fig-9.-Actual-critical-path-300x154.png 300w, https:\/\/www.orizoconsult.com\/wp-content\/uploads\/2022\/11\/Fig-9.-Actual-critical-path-768x395.png 768w, https:\/\/www.orizoconsult.com\/wp-content\/uploads\/2022\/11\/Fig-9.-Actual-critical-path-1536x789.png 1536w, https:\/\/www.orizoconsult.com\/wp-content\/uploads\/2022\/11\/Fig-9.-Actual-critical-path.png 1923w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Figure 9: Le chemin critique r\u00e9el<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-79b926c elementor-widget elementor-widget-spacer\" data-id=\"79b926c\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e9a1d63 elementor-widget elementor-widget-text-editor\" data-id=\"e9a1d63\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Le chemin critique r\u00e9el r\u00e9pond \u00e0 la question suivante:<i>quelle \u00e9tait la s\u00e9quence d&rsquo;activit\u00e9s qui \u00e9tait raisonnablement per\u00e7ue comme conduisant \u00e0 l&rsquo;ach\u00e8vement du projet au moment o\u00f9 les activit\u00e9s \u00e9taient en cours? <\/i> En raison de sa nature contemporaine, il ne peut \u00eatre calcul\u00e9 que jusqu&rsquo;\u00e0 la date actuelle.<\/p>\n<p>L&rsquo;avantage du chemin critique r\u00e9el est qu&rsquo;il peut \u00eatre \u00e9tabli jusqu&rsquo;\u00e0 une date limite et \u00eatre mis \u00e0 jour ult\u00e9rieurement sans affecter le chemin critique pour la p\u00e9riode pr\u00e9c\u00e9dant la date limite. Cette m\u00e9thode est particuli\u00e8rement efficace pour les analyses interm\u00e9diaires des retards effectu\u00e9es sur des projets en cours, o\u00f9 la coh\u00e9rence des mises \u00e0 jour est particuli\u00e8rement importante. <\/p>\n<p>Il est int\u00e9ressant de noter que la premi\u00e8re activit\u00e9 de la s\u00e9quence du chemin critique r\u00e9el correspond \u00e0 l&rsquo;activit\u00e9 critique selon le chemin critique tel que pr\u00e9vu. De m\u00eame, la derni\u00e8re activit\u00e9 de la s\u00e9quence correspond \u00e0 l&rsquo;activit\u00e9 critique selon le chemin critique tel que r\u00e9alis\u00e9. Le chemin critique r\u00e9el permet une transition progressive entre le chemin critique tel que pr\u00e9vu et le chemin critique tel que r\u00e9alis\u00e9.  <\/p>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8329d38 elementor-widget elementor-widget-spacer\" data-id=\"8329d38\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ab227a2 elementor-widget elementor-widget-text-editor\" data-id=\"ab227a2\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Dans un prochain article, nous classerons les principales m\u00e9thodes d&rsquo;analyse des retards en fonction de la&nbsp;<a href=\"https:\/\/www.orizoconsult.com\/insights\/what-are-prospective-and-retrospective-delays\/\">perspective de mesure des retards<\/a>&nbsp;et du type de chemin critique sur lequel elles sont bas\u00e9es.<\/p>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>L&rsquo;industrie de l&rsquo;analyse de retards reconna\u00eet quatre types de chemins critiques. Cet article est une introduction au concept du chemin critique et aux sp\u00e9cificit\u00e9s de chaque type. <\/p>\n","protected":false},"author":2,"featured_media":8230,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[68],"tags":[125,121,120,127,126],"class_list":["post-8220","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-insights-fr","tag-analyse-de-retards","tag-construction-fr","tag-expertise-judiciaire","tag-series-101-analyse-de-retards","tag-suivi-des-projets"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>S\u00e9ries 101 sur l\u2019analyse des retards \u2013 Les 4 types de chemin critique que vous devez conna\u00eetre | Orizo Consult International<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.orizoconsult.com\/fr\/insights-fr\/delay-analysis-101-series-4-types-critical-path-must-know\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"S\u00e9ries 101 sur l\u2019analyse des retards \u2013 Les 4 types de chemin critique que vous devez conna\u00eetre | Orizo Consult International\" \/>\n<meta property=\"og:description\" content=\"L&#039;industrie de l&#039;analyse de retards reconna\u00eet quatre types de chemins critiques. 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