Title :
Finding multiple possible critical paths using fuzzy PERT
Author :
Chen, Shyi-Ming ; Chang, Tao-Hsing
Author_Institution :
Dept. of Comput. Sci. & Inf. Eng., Nat. Taiwan Univ. of Sci. & Technol., Taipei, Taiwan
fDate :
12/1/2001 12:00:00 AM
Abstract :
Program evaluation and review techniques (PERT) is an efficient tool for large project management. In actual project control decisions, PERT has successfully been applied to business management, industry production, project scheduling control, logistics support, etc. However, classical PERT requires a crisp duration time representation for each activity. This requirement is often difficult for the decision-makers due to the fact that they usually can not estimate these values precisely. In recent years, some fuzzy PERT methods have been proposed based on fuzzy set theory for project management. However, there is a drawback in the existing fuzzy PERT methods, i.e., sometimes they maybe cannot find a critical path in a fuzzy project network. In this paper, we propose a fuzzy PERT algorithm to find multiple possible critical paths in a fuzzy project network, where the duration time of each activity in a fuzzy project network is represented by a fuzzy number. The proposed algorithm can overcome the drawback of the existing fuzzy PERT methods
Keywords :
PERT; critical path analysis; fuzzy set theory; project management; PERT; business management; decision-makers; fuzzy PERT methods; fuzzy numbers; fuzzy project network; multiple possible critical paths; possible critical paths; program evaluation and review techniques; project control decisions; project management; Arithmetic; Computer networks; Costs; Fuzzy set theory; Industrial control; Job shop scheduling; Logistics; Production; Project management; Resource management;
Journal_Title :
Systems, Man, and Cybernetics, Part B: Cybernetics, IEEE Transactions on
DOI :
10.1109/3477.969496