Henry Gantt, inventor of the Gantt chartĪ Gantt chart is a bar chart that illustrates a project schedule. Shift work is a good example of this - the employee on the day shift cannot finish until the employee on the evening shift comes in.A Gantt chart showing three kinds of schedule dependencies (in red) and percent complete indications. Start to Finish (SF): This is the least common task relationship, where one task cannot end until another is started.For example, the inspection of a house cannot be done until the house is fully built. Finish to Finish (FF): In some cases, a task cannot end until the previous one is completed.There’s no need for the whole house to be drywalled before beginning to paint the first room. Think of a housing project, for example - once you start putting up the drywall, someone else can begin painting. Start to Start (SS): In this case, several tasks can begin simultaneously.This relationship is the most common option. Finish to Start (FS): One task must be completed before the next can start.There are four types of relations or dependencies to choose from: However, it is possible to have multiple groups of coinciding tasks. Orphaned tasks are against PMBOK standards as they can complicate planning and analysis. A task with no relationships or dependencies may be referred to as a hanging or orphaned task. The name or description of each project taskĪll tasks should be connected.It’s important to review your chart at least once a week to reflect progress and other changes to your project.Ī Gantt chart should include all of the following data points: Once your chart is created, remember to update it as things change.Using a spreadsheet, you will have to create and format a chart manually.
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