Controlling path and controlling segment analysis in repetitive scheduling method

The controlling path and controlling segment are the basis for repetitive project scheduling. In this paper the controlling path is defined as the longest path in duration that determines the minimum project duration, including the controlling segments and controlling constraints on it. The controlling segments are defined as the subactivities on the controlling path. A method to identify the controlling path and controlling segments is proposed, on the basis of the technology of identifying the potential controlling points. To investigate how the project duration is determined, three types of controlling segments are defined and analyzed, namely, the forward controlling segment, the point controlling segment, and the backward controlling segment. This paper presents a convenient and correct way to identify the controlling path and controlling segments conforming to the constraints of projects.