Gantt chart is also called bar chart and bar chart. It shows the project, progress and time through the bar chart, and shows the progress of the project. Gantt chart is a graphical representation of the order and duration of specific items through activity lists and timescales. It includes three parts: line chart, time axis and project axis, which can intuitively show the advancing time of the plan. Gantt chart can be widely used in project management system, production scheduling and other schedule management software.