Arrival processes are often characterized using Poisson distributions Service processes are often characterized using exponential distributions Some wikipedia

Arrival processes are often characterized using Poisson distributions Service processes are often characterized using exponential distributions Some wikipedia rabbit holes to dive down: https://en.wikipedia.org/wiki/Queueing_theory https://en.wikipedia.org/wiki/Queueing_theory https://en.wikipedia.org/wiki/Kendall%27s_notation https://en.wikipedia.org/wiki/Kendall%27s_notation https://en.wikipedia.org/wiki/Jackson_network https://en.wikipedia.org/wiki/Jackson_network