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Critical Path Method

Critical Path Method, or CPM, is classified as a project modeling technique that was developed in the 1950s by analysts at DuPont and Remington Rand. CPM had its own precursors in the Manhattan Project, the World War II research effort that resulted in the first nuclear weapons.

CPM identifies individual project tasks and the interrelated dependences between them. With this fundamental data, an algorithm is utilized to generally ascertain the anticipated time needed to commence and complete each project task.

Derived from these calculations is an overall time frame for even the most complicated of projects. CPM is effectively utilized with projects that are comprised of hundreds of tasks.

At the heart of the methodology is the identification of what is known as the critical path. The critical path is the longest stretch of individual tasks with interrelated dependencies. In layperson’s terms, the critical path is the sequence of connected tasks that will take the longest to complete. The identification and analysis of the critical path permits the reasonably accurate calculation of the overall amount of time needed to commence and complete a project.

Ultimately, a graphic schedule is created that illustrates not only the project as a whole but also each individual critical task and interrelated task dependencies. Tasks that need to be completed at some juncture, but are not critical, are also illustrated within the schedule, but outside and in conjunction with those in the critical path itself.

A better understanding of critical path method is obtained by an examination of:

HSE Insurance Certifications | construction scheduling Consultants

HSE Contractors is insured by the following professional liability policies, up to $4,000,000 for our clients’ protection:
General Liability.
Workers Comp

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