Abstract
In this paper, we derive the performance measures of the truncated Erlangian service queueing system with state-dependent rate, balking and reneging with fuzzy arrival rate (lambda) over tilde (n) so for the (M/E-r/1/N(alpha, beta)), we have obtained P-n,P- s the steady state probabilities in the system with the unit in the service being at stage s (s=1, 2, center dot center dot center dot, r); k is the boundary state for the number of customer more than the one that the rate of service increases. We treat this queueing system for general values of r, k and N and derive the Fuzzy effective measures for the operation of the system at any time.