Definition
A modeling method that represents system changes as a sequence of distinct events occurring at specific points in time.
Detailed Explanation
Discrete Event Simulation (DES) models the operation of a system as a chronological sequence of events where each event occurs at a particular instant and marks a change in the system's state. Unlike continuous simulation variables change instantaneously at separate points in time. The simulation maintains an event list and processes events in temporal order updating system state variables and scheduling future events as appropriate. The approach includes detailed tracking of entity flows resource utilization and queue dynamics.
Use Cases
Queue management in customer service systems manufacturing process optimization healthcare facility operations planning logistics and supply chain management and airport operations simulation.