A graphic device that depicts tasks, machines, personnel, or whatever resources are required to accomplish a job on a calendar-oriented grid. Charts may be provided for various managerial levels and responsibilities, but detailed planning occurs at the lowest organizational level. Performance may be monitored and controlled throughout the organization.If you are engineer or a manager, you are probably familiar with the term "Gantt Chart". Constructed with the aid of Microsoft Project, nowadays it serves as one of the primary tools for project management and tracking progress. But did you know that those charts are named their inventor?Henry Laurence Gantt was born on the cusp of the American Civil War in 1861 in Calvert County, Maryland. He became a teacher and a draftsman before becoming an engineer, and these three professions helped him form his theories on industrial productivity. From 1887 to 1893 Gantt worked in technical management at Midvale Steel and Bethlehem Steel. It was only later that Gantt developed his famous work progress charts and the “task and bonus” method of determining pay for managers.