Gantt Chart |
PERT Chart |
|---|
| Developed and introduced by Henry Gantt in 1917. | Stands for Program Evaluation and Review Technique. Developed and introduced by the U.S. Navy in 1950. |
| Represented with Bar Chart. | Represented with Flowchart and Network Diagram. |
| Focus on the time required to complete a task | It focuses on intertask relationships. |
| Straightforward and is not made for projects which need changes. Used in small projects. | Complex and are made for a small module of the project. Used in large projects. |
| Cannot Display Interrelationship. | Has Numerous Interconnecting Networks of Independent modules. |
| Provide Accurate Time Duration. | Need to Predict the Time. |
 | | Gantt Chart |
|  | | Pert Chart |
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