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E. Kelley, Jr., a computer specialist from Remington-Rand, collaborated in the development of the method, which they reported in two papers in the late 1950s.1

Civil Engineers have adopted the Critical Path Method with something of a vengeance. It is ideally suited to many of the activities associated with plan­ ning, design, construction, and operation in fields where Civil Engineers specialize. Some even consider it to be the Civil Engineer’s own engineering science. Some have gone too far in claiming more for it than it can reasonably deliver. As with all technologies, there are desirable attributes and weaknesses.