Evidence from research and observations indicated that the conceptual models of Construction Management and the tools it utilizes ( work breakdown structure, critical path method, and earned value management ) fail to deliver projects'on-time, at budget, and at desired quality'( Abdelhamid 2004 ).
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There do seem to be loads of Ghits indicating that a WP entry is appropriate, but Critical path method seems to be the right place, and it looks as though at least some of the info here would improve it .-- talk ) 03 : 42, 4 November 2011 ( UTC)
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The critical path method for scheduling a set of activities involves the construction of a directed acyclic graph in which the vertices represent project milestones and the edges represent activities that must be performed after one milestone and before another; each edge is weighted by an estimate of the amount of time the corresponding activity will take to complete.
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-- "'CPM-GOMS "': " Cognitive, perceptual, motor " " and'critical path method " ( John & Kieras, 1996a, 1996b )-attempts to break down performance into primitive CPM units lasting tens to hundreds of milliseconds ( durations for many operations in CPM-GOMS models come from published literature, especially Card et al ., 1983 ).
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At that time, two mathematical project scheduling models were developed : ( 1 ) the " Program Evaluation and Review Technique " or PERT, developed as part of the United States Navy's ( in conjunction with the Lockheed Corporation ) Polaris missile submarine program; and ( 2 ) the " Critical Path Method " ( CPM ) developed in a joint venture by both Remington Rand Corporation for managing plant maintenance projects.
