{"id":1150,"date":"2016-02-01T16:15:49","date_gmt":"2016-02-01T15:15:49","guid":{"rendered":"http:\/\/smart--grid.net\/?page_id=1150"},"modified":"2022-12-03T22:58:51","modified_gmt":"2022-12-03T21:58:51","slug":"diagramme-de-gantt","status":"publish","type":"page","link":"https:\/\/complex-systems-ai.com\/en\/planning-problem\/gantt-chart\/","title":{"rendered":"Gantt chart"},"content":{"rendered":"<div data-elementor-type=\"wp-page\" data-elementor-id=\"1150\" class=\"elementor elementor-1150\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-93ec1e3 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"93ec1e3\" data-element_type=\"section\" data-e-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-33 elementor-top-column elementor-element elementor-element-c2bcd96\" 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class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-910dbbb\" data-id=\"910dbbb\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-d891a86 elementor-align-justify elementor-widget elementor-widget-button\" data-id=\"d891a86\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/fr.wikipedia.org\/wiki\/Diagramme_de_Gantt\" target=\"_blank\" rel=\"noopener\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Wiki<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\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<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-d4d18b5 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"d4d18b5\" data-element_type=\"section\" data-e-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-100 elementor-top-column elementor-element elementor-element-71c530e2\" data-id=\"71c530e2\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-5babf5f elementor-widget elementor-widget-text-editor\" data-id=\"5babf5f\" data-element_type=\"widget\" data-e-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\t\t\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/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:\/\/complex-systems-ai.com\/en\/planning-problem\/gantt-chart\/#Diagramme-de-Gantt\" >Gantt chart<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/complex-systems-ai.com\/en\/planning-problem\/gantt-chart\/#Methode\" >Method<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/complex-systems-ai.com\/en\/planning-problem\/gantt-chart\/#Exemple\" >Example<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Diagramme-de-Gantt\"><\/span>Gantt chart<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The Gantt chart is a visual view of scheduled tasks over time. Gantt charts are used to plan projects of all sizes and are a useful way to show work planned for a specific day. They also help you display the start and end dates of a project in a simple view.<\/p>\n<p>This tool meets two objectives: to plan optimally as well as to communicate on the established schedule and the choices it imposes.<\/p>\n\n<div style=\"padding: 3px; border: 2px dotted #a5a5a5; background-color: #f6f9fa;\">\n<p>The diagram allows:<\/p>\n<ul style=\"text-align: justify;\">\n<li>determine the dates for the completion of a project.<\/li>\n<li>identify the existing margins on certain tasks.<\/li>\n<li>to see at a glance the delay or the progress of the work.<\/li>\n<\/ul>\n<\/div>\n\n<p>The Gantt chart does not solve all problems, especially if one has to plan manufactures that compete for the use of certain company resources.<\/p>\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Methode\"><\/span>Method<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n<p>The method consists of placing the tasks to be carried out in the order defined by the priority and taking into account the resources still available. The most common rules are:<\/p>\n\n<ul class=\"wp-block-list\">\n<li>priority to the completion of products with the earliest delivery date.<\/li>\n<li>priority to the first order arrived.<\/li>\n<li>priority to productions with the shortest total duration.<\/li>\n<li>priority to fabrications that use at least one critical resource.<\/li>\n<li>priority to products that have the minimum margin.<\/li>\n<\/ul>\n\n<p>This diagram (or schedule) has a number of advantages:<\/p>\n\n<ul class=\"wp-block-list\">\n<li style=\"text-align: justify;\">easy to read and accessible to all.<\/li>\n<li style=\"text-align: justify;\">monitoring can be done easily during the course of the project by comparing<br \/>the planned dates and the actual dates.<\/li>\n<li style=\"text-align: justify;\">the start and end dates of each task are read directly from the scale of<br \/>time.<\/li>\n<li>it allows by allocating resources to tasks to establish the load plan.<\/li>\n<\/ul>\n\n<div style=\"padding: 5px; background-color: #d5edff; border: 2px solid #3c95e8; -moz-border-radius: 9px; -khtml-border-radius: 9px; -webkit-border-radius: 9px; border-radius: 9px;\">The diagram is represented on two axes: time and allocation (often a task can only be attributed to a dedicated entity); and contains two types of elements: bars representing a task and its execution time, and arrows representing prior links.<\/div>\n\n<p>The Gantt chart makes it possible to analyze all the relationships that exist between the activities, to identify the sequences of activities, to identify the critical path (without room for maneuver) and the start and end dates (at the earliest and at the latest) of each activity. The Gantt chart makes it possible to choose the dates which will be effectively retained to carry out the activities and, possibly, to show the relationships between the activities and therefore the consequences in terms of delays.<\/p>\n\n<div style=\"padding: 5px; background-color: #ffdcd3; border: 2px solid #ff7964; -moz-border-radius: 9px; -khtml-border-radius: 9px; -webkit-border-radius: 9px; border-radius: 9px;\">\n<p>Drawing a Gantt chart should be done in three steps:<\/p>\n<ol style=\"text-align: justify;\">\n<li>Determine and structure the list of tasks by declaring the antecedents or other constraints.<\/li>\n<li>Create the task diagram (time criterion). For each of them, it is necessary to determine the duration as well as the room for maneuver.<\/li>\n<li>Complete the diagram with the other criteria.<\/li>\n<\/ol>\n<\/div>\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Exemple\"><\/span>Example<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img fetchpriority=\"high\" decoding=\"async\" class=\"alignnone wp-image-1184 size-full\" src=\"https:\/\/complex-systems-ai.com\/wp-content\/uploads\/2016\/02\/gantt1.png\" alt=\"Gantt chart allocation tasks execution time\" width=\"601\" height=\"260\" title=\"\" srcset=\"https:\/\/complex-systems-ai.com\/wp-content\/uploads\/2016\/02\/gantt1.png 601w, https:\/\/complex-systems-ai.com\/wp-content\/uploads\/2016\/02\/gantt1-300x130.png 300w\" sizes=\"(max-width: 601px) 100vw, 601px\" \/><\/figure>\n<\/div>\n\n<p>Establishment of the temporal diagram:<\/p>\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img decoding=\"async\" class=\"alignnone wp-image-1187 size-full\" src=\"https:\/\/complex-systems-ai.com\/wp-content\/uploads\/2016\/02\/gantt2.png\" alt=\"Gantt chart allocation tasks execution time\" width=\"677\" height=\"330\" title=\"\" srcset=\"https:\/\/complex-systems-ai.com\/wp-content\/uploads\/2016\/02\/gantt2.png 677w, https:\/\/complex-systems-ai.com\/wp-content\/uploads\/2016\/02\/gantt2-300x146.png 300w\" sizes=\"(max-width: 677px) 100vw, 677px\" \/><\/figure>\n<\/div>\n\n<p>Addition of criteria (here the number of staff to accomplish a task:<\/p>\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img decoding=\"async\" class=\"alignnone wp-image-1190 size-full\" src=\"https:\/\/complex-systems-ai.com\/wp-content\/uploads\/2016\/02\/gantt3.png\" alt=\"Gantt chart allocation tasks execution time\" width=\"826\" height=\"436\" title=\"\" srcset=\"https:\/\/complex-systems-ai.com\/wp-content\/uploads\/2016\/02\/gantt3.png 826w, https:\/\/complex-systems-ai.com\/wp-content\/uploads\/2016\/02\/gantt3-300x158.png 300w, https:\/\/complex-systems-ai.com\/wp-content\/uploads\/2016\/02\/gantt3-768x405.png 768w\" sizes=\"(max-width: 826px) 100vw, 826px\" \/><\/figure>\n<\/div>\n\t\t\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<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Scheduling Problem Wiki Home Page Gantt Chart The Gantt chart is a visual view of scheduled tasks over time. The \u2026 <\/p>","protected":false},"author":1,"featured_media":0,"parent":868,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-1150","page","type-page","status-publish","hentry"],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/complex-systems-ai.com\/en\/wp-json\/wp\/v2\/pages\/1150","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/complex-systems-ai.com\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/complex-systems-ai.com\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/complex-systems-ai.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/complex-systems-ai.com\/en\/wp-json\/wp\/v2\/comments?post=1150"}],"version-history":[{"count":4,"href":"https:\/\/complex-systems-ai.com\/en\/wp-json\/wp\/v2\/pages\/1150\/revisions"}],"predecessor-version":[{"id":17914,"href":"https:\/\/complex-systems-ai.com\/en\/wp-json\/wp\/v2\/pages\/1150\/revisions\/17914"}],"up":[{"embeddable":true,"href":"https:\/\/complex-systems-ai.com\/en\/wp-json\/wp\/v2\/pages\/868"}],"wp:attachment":[{"href":"https:\/\/complex-systems-ai.com\/en\/wp-json\/wp\/v2\/media?parent=1150"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}