Fuzzy vs Probabilistic Scheduling

This paper provides a comprehensive comparison between two groups of nondeterministic scheduling methods: 1) probabilistic and 2) fuzzy set based methods. A numerical example is used to demonstrate the differences between the two groups of methods. The comparison is conducted considering three aspects: 1) theoretical assumptions, 2) data acquisition and computational effort and, 3)scheduling information. The results indicate that the fuzzy network method can overcome some of the limitations associated with PERT and monte carlo simulation. The fuzzy network method is capable of providing realistic and useful information to the project team.