ABSTRACT
A project network chart is a tool for graphically depicting a schedule and serves as a basis for Program Evaluation and Review Technique (PERT) and Critical path method. Project networks can be used to plan, record, and document a schedule and to track actual results against the schedule. PERT is useful in research and development projects where the times required to complete the various activities are uncertain. Creating a project network is a complex undertaking. The computations are straightforward, but non-trivial. Without appropriate software tools, maintaining or changing a project network can be difficult. The accuracy of the project network is no better than the estimated duration of each of the activities. The project network defines the dependency relationships between the events. Given a clear sense of the order in which events must occur, the analyst can prepare a schedule.
