Editing Simulation (section)

===Production===
'''Simulation of production systems'''<!--boldface per [[R#PLA]]--> is used mainly to examine the effect of improvements or investments in a [[Operations management#Production systems|production system]]. Most often this is done using a static spreadsheet with process times and transportation times. For more sophisticated simulations [[Discrete Event Simulation]] (DES) is used with the advantages to simulate dynamics in the production system. A production system is very much dynamic depending on variations in manufacturing processes, assembly times, machine set-ups, breaks, breakdowns and small stoppages.<ref>{{cite book|last=Ulf|first=Eriksson|title=Diffusion of Discrete Event Simulation in Swedish Industry|year=2005|publisher=Doktorsavhandlingar vid Chalmers tekniska högskola|location=Gothenburg|isbn=978-91-7291-577-0}}</ref> There is much [[List of discrete event simulation software|software]] commonly used for discrete event simulation. They differ in usability and markets but do often share the same foundation.