1965-02-01

PROPS — An Improved CPM Technique For Project Planning and Control 650290

Two recent developments in the Critical Path Method (CPM) are presented and discussed. First, the advantages of a CIRCLE notation diagram for the presentation of CPM project plans are described. As opposed to the usual operation-on-the-arrow CPM diagram, a CIRCLE diagram requires no extra “dummy” operations or events to describe the logic of the project, and operation numbers can be assigned before the diagram is drawn. Second, the concept of allowing dependent operations to overlap in time is introduced and evaluated. The operation overlapping technique allows the CPM analysis of a project without an excessive amount of breakdown of the project pieces. This idea seems to offer the link between the bar chart and the ordinary CPM diagram.

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