Are there any case studies that demonstrate the effectiveness of using a PERT Chart in project planning?

Yes, there are numerous case studies that demonstrate the effectiveness of using a PERT (Program Evaluation and Review Technique) Chart in project planning. For instance, the construction of the Hoover Dam, the Polaris missile program, and the planning of large-scale events like the Olympics have all utilized PERT charts for effective project management. These case studies show how PERT charts can help in identifying critical tasks, estimating project completion time, and managing interdependent tasks effectively.

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However, even the tasks you do plan for can hold your project back. That's because many tasks are dependent on one another - even those that don't happen in order. A PERT Chart is a visualization that tracks these various tasks in a freeform flowchart to show their dependency on one another with arrows. Instead of a GANTT Chart that flows left to right in a timeline format, tasks might not be solely sequentially dependent, as you might have to go back and repeat work on one task that changes a future task and vice versa. The arrows also dictate whether something is directly connected versus dependent without resources. Dependent without resources refers to when the tasks aren't connected to each other but still relate. (Slide 5)

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