English: Gantt or Bar Chart

The Gantt chart or the bar chart provides a time-phased sequence of the work scope. It can be customized to reflect any activity related information that will assist in the analysis of the schedule. Some of these customized columns include dates, durations, resources, predecessor and successor activities, and activity codes. The Gantt or bar chart can provide logical relationships but the lines drawn from these relationships may not be easily traced. A Gantt chart is the mostly commonly used communication means for a project schedule. Its benefits are quick insights to the project activities' start and finish dates. Its deficiencies include possible deficiencies in the representation of the logical flow of work, and no total representation to the resource levels or costs required to complete the scope.

As shown in the figure above, the Gantt chart displays information for a project at various levels of detail. It also provides guidance on who might provide input and approval for the schedules at the various levels.