A Survey of Researches on Uncertain Project Scheduling Problems

This paper summarizes the recent researches on uncertain project scheduling problems. The literatures of the proactive project scheduling problems are presented firstly. Then we review the achievements of the reactive project scheduling problems. According to the methods of dealing with uncertain information, the developments of the stochastic project scheduling problems and the fuzzy project scheduling problems are described respectively. Ultimately, the paper is sumed up and the directions for further research in this field are indicated.