Project Scheduling Problem with Uncertain Activity Duration Times

Project scheduling problem is to determine the schedule of allocating resources so as to balance the total cost and the completion time. This paper considers project scheduling problem with uncertain activity duration times and presents four new uncertain programming models for different management requirements. Moreover, taking advantage of some properties of uncertainty theory, these models can be transformed to their deterministic forms respectively. Finally, a numerical example is illustrated, and its solution is found by using hybrid intelligent algorithm.