The Critical Path project management method is a deterministic method that allows the control of the time and cost of execution of a project, using only one duration of time associated with each activity, which leads to a very good accuracy. This method is very used in construction projects because of their resource dependency and their accurate time estimates. By using a network graphic model, provides an overview of the project and allows determining the total duration of its implementation. It takes into account only the time parameter.
On a network type graph are represented the events that mark the beginning and the duration and the end of an activity. Then the network is drawn respecting the following:
Between the beginning and the end of the project there are several paths. The one with the longest length is the critical path.
For the operative management of the project a Gantt Chart can be built to illustrate the project schedule. The duration of each activity is represented as a line and is placed in the graph corresponding to the minimum term of starting the activity. The critical activities and non-critical activities should represented with distinct lines.