A HEURISTIC IMPROVED METHOD BASED ON THE PRIORITY FOR CONSTRAINED PROJECT SCHEDULING PROBLEM WITH FUZZY PARAMETERS

Abstract. In this research at first some of the most important previous studies in the field of fuzzy project planning and its various solving procedures are reviewed and introduced. Then after introducing the problem model and considering its theories, one of the most creative approaches for solving the Constrained and definite Project Scheduling Problem has improved and deployed with allowing time parameters and fuzzy resource to solve the problem. With utilizing one of the presented approaches in previous researches the needed operations for computing the priorities were improved and finally the proposed algorithm in the total form and ability to solve the mentioned fuzzy problems in different dimensions were offered and described. After programming of the proposed algorithm with visual c#, 120 problem instances with different properties was solved by the algorithm and the priorities were ranked and analyzed with respect to its results. With respect to use a way for ranking fuzzy numbers in this algorithm, some of the different presented mentioned ways in previous researches and categories have been also reviewed. At the end some suggestions for developing the model and applying the other theories i