Queuing Models
We would like to estimate (w,Tw, q,Tq), waiting items, waiting time, queued items, and queuing time, mean and standard deviation of each.
Assumptions made about queuing model is summarized using a notation:
G – general distribution, M – exponential distribution, D – deterministic fixed rate
Accordingly models are named: M/M/1 refers to Poisson arrival , exponential service with a single server.