If you have experience in project management, you might have heard about the critical path method (CPM) — a project modeling technique developed by Morgan R. Walker and James E. Kelly in late 1950 (Wikipedia).
The critical path method (CPM) is used extensively by project planners worldwide for developing the project schedule in types of projects; e.g. IT, research, construction, etc.
This method is a basis of the project schedule and is discussed very broadly in the PMBOK Guide. You can expect to see more than two to three questions in your PMP exam from this topic.
In this blog post, I will discuss the critical path with a real world example, identify the critical path in a network diagram, and calculate the float for each path. I will then list some of the benefits and limitations of the critical path method.
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