ABSTRACT
This paper is the fuzzy analysis of a queue network model with the assumptions of pre-emptive priority discipline on biserial subsystems and general arrival is on parallel subsystems. It is presupposed that service time and the interval between two succeeding arrivals follow the Poisson distribution. Both arrivals and service costs are fuzzy in nature. Performance of the purposed model evaluated by using L-R fuzzy numbers. L-R method is more flexible and simplest method for fuzzy analysis as compared to other existing methods. Fuzzy triangular number and all classical formulae used to calculate fuzzy queue characteristics. A numerical calculation well illustrated the results.
