The series of activities of a project that determines the earliest completion of the project. The critical path generally changes from time to time as activities are completed ahead of or behind schedule. The critical path is usually defined as those activities with total float less than or equal to zero. See also critical path method . Early dates are calculated by means of a forward pass using a specified start date.
Cycle See loop .
D Data date See timenow date . Dependency See logical relationship . All activity durations are specified with the same duration unit . The duration unit specifies the unit of time for the duration of each activity in the project. Early finish dates can change as the project progresses and changes are made to the project plan.