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Henry Gantt (1861–1919) created the Gantt chart in a setting and time which was deeply involved in exploring efficiency in manufacturing, time and motion studies, and the formulation of ‘scientific management’ (the foundation of modern management principals). Today many people see the Gantt chart as a project management tool, however its origins are completely intertwined with process.
Gantt charts use time-lengthened bars to represent tasks. Tasks are connected to each other according to predecessors and dependencies. Simple arrows are used to connect the task bars. See Figure A.2.
Figure A.2 Gantt chart
The simplicity of the Gantt chart makes it easy to use and read. It is especially legible to project managers and staff often engaged in project based work. It has been successfully used on highly complex project s such as the building of the Hoover Dam and the creation of the interstate highway network in the US. Its limitations are its inability to show organizational/departmental structures associated with tasks, an inability to include process/workflow rules, and inabilities to show split and join actions.
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