Vertaile menetelmiä

	Policy Scenario Queueing Simulation	Diskreetti tapahtumasimulaatio (DES)
Tieteenala	Simulointi	Simulointi
Menetelmäperhe	Process / pipeline	Process / pipeline
Syntyvuosi	1909 (queueing theory); scenario application from 1960s–1970s OR literature	1960s (formalized); modern computational form from 1970s onward
Kehittäjä	Erlang, A. K. (foundation); generalized by operations research community	Banks, Carson, Nelson & Nicol (textbook lineage); foundational work by Tocher & Conway (1960s)
Tyyppi	Comparative simulation experiment	Stochastic process simulation
Alkuperäislähde	Kleinrock, L. (1975). Queueing Systems, Volume 1: Theory. Wiley-Interscience, New York. ISBN: 978-0471491101	Banks, J., Carson, J.S., Nelson, B.L. & Nicol, D.M. (2010). Discrete-Event System Simulation (5th ed.). Pearson. ISBN: 978-0136062127
Rinnakkaisnimet	PSQS, policy queueing analysis, queueing policy comparison, scenario-based queueing model	DES, event-driven simulation, Ayrık Olay Simülasyonu (DES)
Liittyvät	5	4
Tiivistelmä	Policy Scenario Queueing Simulation applies queueing theory and discrete-event simulation to evaluate two or more competing service or resource-allocation policies under realistic demand and capacity conditions. By holding the system structure constant and varying only the policy rules, analysts can directly compare throughput, waiting times, utilization, and equity outcomes before committing to real-world implementation.	Discrete-Event Simulation (DES) is a computational modeling paradigm in which the state of a system changes only at a countable sequence of points in time — the events. Between events nothing changes, so the simulation clock jumps directly from one event to the next. Formalized through the foundational textbooks of Banks, Carson, Nelson and Nicol and of Law in the 1960s–2000s, DES has become the standard tool for analyzing queuing systems, healthcare patient flows, manufacturing lines, and logistics networks where entities move through resources over time.