A
Gantt chart is a type of
bar chart, adapted by
Karol Adamiecki in 1896 and independently by
Henry Gantt in the 1910s, that illustrates a
project schedule. Gantt charts illustrate the start and finish dates of the terminal elements and summary elements of a
project. Terminal elements and summary elements comprise the
work breakdown structure of the project. Modern Gantt charts also show the
dependency (i.e., precedence network) relationships between activities. Gantt charts can be used to show current schedule status using percent-complete shadings and a vertical "TODAY" line as shown here.