{"id":16979,"date":"2019-02-18T15:25:15","date_gmt":"2019-02-18T09:55:15","guid":{"rendered":"http:\/\/www.fusioncharts.com\/blog\/?p=16979"},"modified":"2025-11-24T11:38:49","modified_gmt":"2025-11-24T06:08:49","slug":"gantt-charts-when-to-use-them-and-when-not-to","status":"publish","type":"post","link":"https:\/\/www.fusioncharts.com\/blog\/gantt-charts-when-to-use-them-and-when-not-to\/","title":{"rendered":"Gantt Charts: When to Use Them and When Not To"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_71 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\"><p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<\/div><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:\/\/www.fusioncharts.com\/blog\/gantt-charts-when-to-use-them-and-when-not-to\/#Introduction\" title=\"Introduction\">Introduction<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.fusioncharts.com\/blog\/gantt-charts-when-to-use-them-and-when-not-to\/#When_is_Using_a_Gantt_Chart_Not_a_Good_Idea\" title=\"When is Using a Gantt Chart Not a Good Idea\">When is Using a Gantt Chart Not a Good Idea<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.fusioncharts.com\/blog\/gantt-charts-when-to-use-them-and-when-not-to\/#When_You_Need_to_See_the_Amount_of_Work_Done\" title=\"When You Need to See the Amount of Work Done\">When You Need to See the Amount of Work Done<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.fusioncharts.com\/blog\/gantt-charts-when-to-use-them-and-when-not-to\/#When_You_Need_a_Simplistic_View_of_Your_Data\" title=\"When You Need a Simplistic View of Your Data\">When You Need a Simplistic View of Your Data<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.fusioncharts.com\/blog\/gantt-charts-when-to-use-them-and-when-not-to\/#When_You_Havent_Completed_the_Planning\" title=\"When You Haven&#8217;t Completed the Planning\">When You Haven&#8217;t Completed the Planning<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.fusioncharts.com\/blog\/gantt-charts-when-to-use-them-and-when-not-to\/#When_You_Want_to_See_the_Scope_and_Cost_of_a_Project\" title=\"When You Want to See the Scope and Cost of a Project\">When You Want to See the Scope and Cost of a Project<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.fusioncharts.com\/blog\/gantt-charts-when-to-use-them-and-when-not-to\/#When_is_Using_a_Gantt_Chart_a_Good_Idea\" title=\"When is Using a Gantt Chart a Good Idea?\">When is Using a Gantt Chart a Good Idea?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.fusioncharts.com\/blog\/gantt-charts-when-to-use-them-and-when-not-to\/#When_You_Want_to_Look_at_the_Timeline_Across_All_Parts_of_a_Project\" title=\"When You Want to Look at the Timeline Across All Parts of\u00a0 a Project\">When You Want to Look at the Timeline Across All Parts of\u00a0 a Project<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.fusioncharts.com\/blog\/gantt-charts-when-to-use-them-and-when-not-to\/#When_You_Have_a_Concrete_Plan_for_the_Project\" title=\"When You Have a Concrete Plan for the Project\">When You Have a Concrete Plan for the Project<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.fusioncharts.com\/blog\/gantt-charts-when-to-use-them-and-when-not-to\/#When_You_Need_to_Allocate_Resources_Dynamically\" title=\"When You Need to Allocate Resources Dynamically\">When You Need to Allocate Resources Dynamically<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.fusioncharts.com\/blog\/gantt-charts-when-to-use-them-and-when-not-to\/#When_You_Have_to_Manage_Inter-Dependent_Tasks\" title=\"When You Have to Manage Inter-Dependent Tasks\">When You Have to Manage Inter-Dependent Tasks<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2 class=\"mt-0\"><span class=\"ez-toc-section\" id=\"Introduction\"><\/span>Introduction<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>All projects, big or small, have multiple data points that stakeholders need to see, such as timelines, expenses, efficiency, and so on. Gantt charts are a type of bar chart that depicts a project schedule. Gantt charts and project management are inextricably linked. Indeed, Henry Gantt, the creator (and namesake) of Gantt charts, is regarded as one of the forefathers of project management (along with Henri Fayol).<\/p>\n<div>\n<!-- iframe plugin v.5.1 wordpress.org\/plugins\/iframe\/ -->\n<iframe loading=\"lazy\" src=\"https:\/\/jsfiddle.net\/sikrigagan\/5Lhq7wbc\/1\/embedded\/result,js,html,css\/\" frameborder=\"0\" width=\"100%\" height=\"600\" scrolling=\"yes\" class=\"iframe-class\"><\/iframe>\n<\/div>\n<p>A Gantt chart is used to display timelines. It is a date\/time chart that allows you to plot tasks with exact start and end dates\/times. Milestones can also be used to specify how much of a project must be completed by when. In general, this chart appears to be an expanded version of the bar chart. The chart canvas is divided into two sections: the view pane and the data table. In the view pane, tasks are listed along with their start and end dates\/times. The data table contains horizontal bars that represent tasks. The task&#8217;s duration is represented by the length of the bar. Tasks are connected with arrows, and milestones are represented by stars or polygons.<\/p>\n<figure style=\"width: 300px\" class=\"wp-caption alignleft small\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.fusioncharts.com\/blog\/wp-content\/uploads\/2019\/02\/image_preview-1-300x225.gif\" alt=\"\" width=\"300\" height=\"225\" \/><figcaption class=\"wp-caption-text\">One of the first Gantt charts ever made was used for WW1 Navy shipbuilding activities for the United States. The rise in efficiency was so high that Gantt charts were quickly adopted in a lot of government projects including the building of the Hoover Dam as well as the US Interstate Highway.<\/figcaption><\/figure>\n<p>However, since the introduction of Gantt Charts more than a century ago, projects have evolved dramatically. While time is still an important consideration for project owners and managers, there are other considerations, particularly when it comes to building software projects or due to the affect of AI and <a href=\"https:\/\/aloa.co\/ai\/services\/workflow-automation\" target=\"_blank\" rel=\"noopener\">workflow automation services<\/a> that decreases timeframe to complete some task rapidly so due to evolving timelines project requirements for such tasks are more fluid than their traditional counterparts, such as construction, mining, or even manufacturing. As a result, Gantt charts are not always the best choice for communicating progress plans and progress to stakeholders.<\/p>\n<p>In this article,\u00a0 we&#8217;ll tackle our in-house dataviz experts, who assisted us in determining when it is best to use a Gantt chart and when it is best to use another visualization. You may use the gantt <a href=\"https:\/\/www.fusioncharts.com\/dev\/chart-attributes\/gantt\">data chart<\/a> that is powered by Fusion Charts.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"When_is_Using_a_Gantt_Chart_Not_a_Good_Idea\"><\/span>When is Using a Gantt Chart Not a Good Idea<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3 class=\"mt-1\"><span class=\"ez-toc-section\" id=\"When_You_Need_to_See_the_Amount_of_Work_Done\"><\/span>When You Need to See the Amount of Work Done<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<div>\n<!-- iframe plugin v.5.1 wordpress.org\/plugins\/iframe\/ -->\n<iframe loading=\"lazy\" src=\"https:\/\/jsfiddle.net\/3y4wmueo\/3\/embedded\/result,js,html,css\/\" frameborder=\"0\" width=\"100%\" height=\"500\" scrolling=\"yes\" class=\"iframe-class\"><\/iframe>\n<\/div>\n<p>Each bar on a Gantt chart indicates the time period over which a particular set of tasks will be completed. However, by looking at the bar for a particular set of tasks, you cannot tell what level of resources are required to achieve those tasks. So, a short bar might take 500 man-hours while a longer bar may only take 20 man-hours. The longer bar may indicate to the uninformed user that it is a bigger task, when in fact it is not.<\/p>\n<div>\n<!-- iframe plugin v.5.1 wordpress.org\/plugins\/iframe\/ -->\n<iframe loading=\"lazy\" src=\"https:\/\/jsfiddle.net\/2f5Lzaxg\/1\/embedded\/result,js,html,css\/\" frameborder=\"0\" width=\"100%\" height=\"500\" scrolling=\"yes\" class=\"iframe-class\"><\/iframe>\n<\/div>\n<h3><span class=\"ez-toc-section\" id=\"When_You_Need_a_Simplistic_View_of_Your_Data\"><\/span>When You Need a Simplistic View of Your Data<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>In a lot of larger-scale projects, there will be a large number of tasks undertaken and resources employed to complete the project. However, when the project gets to this level, it must be managed by a small number of people (perhaps one) who manages all of the details. Sometimes this does not work so well in a business that is not used to this type of management. Big businesses will frequently employ one or more project managers who are very skilled in this. For a range of reasons, this may not work so well in a smaller enterprise.<\/p>\n<div>\n<!-- iframe plugin v.5.1 wordpress.org\/plugins\/iframe\/ -->\n<iframe loading=\"lazy\" src=\"https:\/\/jsfiddle.net\/bytqmuw7\/8\/embedded\/result,js,html,css\/\" frameborder=\"0\" width=\"100%\" height=\"450\" scrolling=\"yes\" class=\"iframe-class\"><\/iframe>\n<\/div>\n<h3><span class=\"ez-toc-section\" id=\"When_You_Havent_Completed_the_Planning\"><\/span>When You Haven&#8217;t Completed the Planning<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>The biggest limitation of a Gantt chart is that it relies upon the <a href=\"https:\/\/www.workbreakdownstructure.com\/\" target=\"_blank\" rel=\"noopener noreferrer\">work breakdown structure<\/a> to have already been constructed \u2013 and for it to be complete. Should there be major tasks missing from the WBS, or should a major milestone be missing, the Gantt chart will not showcase the same to you. In fact, if you are attempting to create the work breakdown structure at the same time you are constructing the Gantt chart, you\u2019ll run into the risk of having to recreate the entire project schedule if something is left out, a duration is misestimated, or another milestone has been missed.<\/p>\n<p><center><img decoding=\"async\" src=\"https:\/\/www.fusioncharts.com\/blog\/wp-content\/uploads\/2019\/02\/image_preview-5-300x140.png\" alt=\"\" width=\"100%\" height=\"140\" \/><\/center>&nbsp;<\/p>\n<h3><span class=\"ez-toc-section\" id=\"When_You_Want_to_See_the_Scope_and_Cost_of_a_Project\"><\/span>When You Want to See the Scope and Cost of a Project<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<div>\n<!-- iframe plugin v.5.1 wordpress.org\/plugins\/iframe\/ -->\n<iframe loading=\"lazy\" src=\"https:\/\/jsfiddle.net\/3y4wmueo\/3\/embedded\/result,js,html,css\/\" frameborder=\"0\" width=\"100%\" height=\"500\" scrolling=\"yes\" class=\"iframe-class\"><\/iframe>\n<\/div>\n<p>Gantt charts do not do well with dealing with the triple constraints of Project Management. The triple constraints are: Time, cost, and scope. Neither the cost nor the scope of a project is depicted on a Gantt chart. Due to this no matter how detailed the Gantt chart is, the full complexity can never be depicted. This is because the focus of the Gantt chart is only time.<\/p>\n<div>\n<!-- iframe plugin v.5.1 wordpress.org\/plugins\/iframe\/ -->\n<iframe loading=\"lazy\" src=\"https:\/\/jsfiddle.net\/nLeksyh5\/2\/embedded\/result,js,html,css\/\" frameborder=\"0\" width=\"100%\" height=\"500\" scrolling=\"yes\" class=\"iframe-class\"><\/iframe>\n<\/div>\n<p><em>Scroll along the chart to see time and scope constraints for the same project<\/em><\/p>\n<h2><span class=\"ez-toc-section\" id=\"When_is_Using_a_Gantt_Chart_a_Good_Idea\"><\/span>When is Using a Gantt Chart a Good Idea?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"When_You_Want_to_Look_at_the_Timeline_Across_All_Parts_of_a_Project\"><\/span>When You Want to Look at the Timeline Across All Parts of\u00a0 a Project<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>One of the greatest reasons any project manager should use a <a href=\"https:\/\/niftypm.com\/blog\/gantt-chart-software\/\" rel=\"noreferrer\">Gantt chart software<\/a> is the Time-centric guidance provided by the powerful and meaningful insights the chart gives. As an example, you can get the total amount of time it will take you to accomplish the project. Further, a Gantt chart not only gives you the possibility to visualize a sequence of events planned in your schedule, but it also enables the creation of a link between activities, also known as \u201cdependencies\u201d, allowing identification of the tasks that might get affected by another task.<\/p>\n<div>\n<!-- iframe plugin v.5.1 wordpress.org\/plugins\/iframe\/ -->\n<iframe loading=\"lazy\" src=\"https:\/\/jsfiddle.net\/3y4wmueo\/3\/embedded\/result,js,html,css\/\" frameborder=\"0\" width=\"100%\" height=\"500\" scrolling=\"yes\" class=\"iframe-class\"><\/iframe>\n<\/div>\n<h3><span class=\"ez-toc-section\" id=\"When_You_Have_a_Concrete_Plan_for_the_Project\"><\/span>When You Have a Concrete Plan for the Project<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Gantt charts allow you to set accurate deadlines. When you are scheduling the whole project you are able to enter a starting date, a target end date, all the key dates or milestones in the middle, and even set a duration for each task. The whole project is scheduled and everything looks good so far. But what if something comes up unexpectedly? That is when using a Gantt chart becomes really interesting.<\/p>\n<p>When starting a project, there\u2019s a great chance that unexpected events will come up and have an impact on your schedule. A Gantt chart enables the scheduler to be very flexible, react quickly to unforeseen events, and modify the schedule basis project changes. Gantt charts make it possible to develop visual scenarios to react very quickly to those unforeseen events, for instance, what happens to the second milestone if the first task takes a week longer? That way, reactions to quick changes on the schedule can be visible.<\/p>\n<div>\n<!-- iframe plugin v.5.1 wordpress.org\/plugins\/iframe\/ -->\n<iframe loading=\"lazy\" src=\"https:\/\/jsfiddle.net\/sikrigagan\/5Lhq7wbc\/1\/embedded\/result,js,html,css\/\" frameborder=\"0\" width=\"100%\" height=\"500\" scrolling=\"yes\" class=\"iframe-class\"><\/iframe>\n<\/div>\n<h3><span class=\"ez-toc-section\" id=\"When_You_Need_to_Allocate_Resources_Dynamically\"><\/span>When You Need to Allocate Resources Dynamically<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>By being able to look ahead on the Gantt chart, users can clearly anticipate, allocate, and maximize resources. The more closely you follow the chart, the better the chances of keeping project costs within budgets. This process also ensures an on-time completion. With a Gantt chart, you will have a very clear view of all the activities scheduled. You will know how long each activity should last, where do activities overlap, and optimal resource allocation. All you need is a few minutes to think about it and apply the right resource to the right task. This will also ensure that you aren\u2019t wasting resources with under-optimized allocations.<\/p>\n<div>\n<!-- iframe plugin v.5.1 wordpress.org\/plugins\/iframe\/ -->\n<iframe loading=\"lazy\" src=\"https:\/\/jsfiddle.net\/sikrigagan\/8cxyu4fn\/1\/embedded\/result,js,html,css\/\" frameborder=\"0\" width=\"100%\" height=\"500\" scrolling=\"yes\" class=\"iframe-class\"><\/iframe>\n<\/div>\n<h3><span class=\"ez-toc-section\" id=\"When_You_Have_to_Manage_Inter-Dependent_Tasks\"><\/span>When You Have to Manage Inter-Dependent Tasks<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Gantt charts can make it very clear how various tasks are interrelated. They may have to rely on the completion of another task to meet specific objectives. These task relationships revolve around understanding the timing of each task, which then impacts other tasks listed. This can better assure the optimum workflow, maximize productivity and ensure overall project success. A dependent task is always tied to another one. Furthermore, you can only start once the first task is completed. You will need to account for other types of dependencies, such as start to start or finish to finish. Thanks to that you will be able to define the starting point of activity once the previous one is achieved.<\/p>\n<div>\n<!-- iframe plugin v.5.1 wordpress.org\/plugins\/iframe\/ -->\n<iframe loading=\"lazy\" src=\"https:\/\/jsfiddle.net\/sikrigagan\/7tcuLbzq\/1\/embedded\/result,js,html,css\/\" frameborder=\"0\" width=\"100%\" height=\"500\" scrolling=\"yes\" class=\"iframe-class\"><\/iframe>\n<\/div>\n<p class=\"h3 pt-2\">Want to try making awesome Gantt Charts yourself?<br \/>\n<a href=\"https:\/\/www.fusioncharts.com\/download\" target=\"_blank\" rel=\"noopener noreferrer\">Download and Try FusionCharts Now!<\/a><\/p>\n<p><script type=\"application\/ld+json\">\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [{\n    \"@type\": \"Question\",\n    \"name\": \"When is Using a Gantt Chart Not a Good Idea?\",\n    \"acceptedAnswer\": {\n      \"@type\": \"Answer\",\n      \"text\": \"When You Need to See the Amount of Work Done\nEach bar on a Gantt chart indicates the time period over which a particular set of tasks will be completed. However, by looking at the bar for a particular set of tasks, you cannot tell what level of resources are required to achieve those tasks. So, a short bar might take 500 man-hours while a longer bar may only take 20 man-hours. The longer bar may indicate to the uninformed user that it is a bigger task, when in fact it is not.\"\n    }\n  },{\n    \"@type\": \"Question\",\n    \"name\": \"When is Using a Gantt Chart a Good Idea?\",\n    \"acceptedAnswer\": {\n      \"@type\": \"Answer\",\n      \"text\": \"When You Want to Look at the Timeline Across All Parts of  a Project\nOne of the greatest reasons any project manager should use a Gantt chart is the Time-centric guidance provided by the powerful and meaningful insights the chart gives. As an example, you can get the total amount of time it will take you to accomplish the project. Further, a Gantt chart not only gives you the possibility to visualize a sequence of events planned in your schedule, but it also enables the creation of a link between activities, also known as \u201cdependencies\u201d, allowing identification of the tasks that might get affected by another task.\"\n    }\n  }]\n}\n<\/script><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Introduction All projects, big or small, have multiple data points that stakeholders need to see, such as timelines, expenses, efficiency, and so on. Gantt charts are a type of bar chart that depicts a project schedule. Gantt charts and project management are inextricably linked. Indeed, Henry Gantt, the creator (and namesake) of Gantt charts, is [&hellip;]<\/p>\n","protected":false},"author":45,"featured_media":16990,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[17],"tags":[],"coauthors":[707],"class_list":["post-16979","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-charting-guidelines"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Gantt Charts - When to use them &amp; when not to<\/title>\n<meta name=\"description\" content=\"Gantt Charts are critical for managing most projects. 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