A Gantt chart, which is widely used in project management, is one of the most popular and useful methods of displaying activities (tasks or events) against time. A list of the activities is shown on the left side of the chart, and a time scale is shown along the top. Each activity is represented by a bar, with the position and length of the bar reflecting the activity's start, duration, and end dates. This allows you to see everything at a glance:
What are the various activities?
When each activity starts and stops?
How much time is allotted to each activity?
Where and how much activities overlap with one another
The beginning and end dates of the entire project
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