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Simulation

  • Used to study complex systems
  • The development of a model of a complex system and the experimental manipulation to observe results
    • System
      • Groups of objects interacting in some way
      • Dynamic, interactive, and complicated
    • Model
      • An abstraction of a real system
      • Representation of the objects within a system and the rules that govern those objects
  • Can be a continuous or discrete-event simulation
    • Continuous
      • Time is continuous
      • Changes are expressed in terms of a set of differential equations reflecting the relationships among the set of characteristics
        • Characteristics are chosen to model the system must be understood with mathematics
      • Frequently used by engineers and economists
    • Discrete-event
      • Made up of entities, attributes, and events
        • Entity
          • Some object in the real system
        • Event
          • Interaction between entities