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CS 351 Overview Spring 2012

This overview provides an introduction to modeling and simulation technologies, their components, and their applications in various fields. Topics include the reasons for simulating, predicting behavior, system characterization, virtual environments, simulation components, and the technologies used.

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CS 351 Overview Spring 2012

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  1. Modeling and Simulation Technologies Dr. Jim Holten CS 351OverviewSpring 2012

  2. CSE 351 Modeling and Simulation • Why simulate? • Simulator components • Simulator technologies

  3. CSE 351 Why Simulate? • Predict behavior before building • Predict for future expectations • System characterization testing • Pretend (virtual environments)

  4. CSE 351 Before Building • Prototypes are often cheaper than building • Proof-of-concept • Evaluate design trade-offs • Sell concepts to others

  5. CSE 351 Predicting the Future • Weather forecasts, hurricane paths • Stock market • Satellite and asteroid orbits and changes • Earthquakes

  6. CSE 351 System Characterization • Sensitivity analysis • Accuracy determination • Behavior familiarity

  7. CSE 351 Virtual Environments • Training tools • Interactive controller • Realism experience for system use • Games

  8. CSE 351 Simulation Components • The model • The environment – equipment, software • Inputs – Initialization, updates • Outputs – Numbers, plots, animations

  9. CSE 351 Simulation Environment • Computer hardware • Operating system • Programming language(s) • Supporting tools

  10. CSE 351 Simulation Model • Environment states (variables) • Internal states (variables) • Time handling (scaled steps or events) • State interpretations

  11. CSE 351 Simulation Inputs • Initial setup • Environment variables • Model variables, and • Output specifications/selections • During run (periodic and interactive)

  12. CSE 351 Simulation Outputs • All states (allows restarts) • Snapshots of some states • Statistics on model states and overall run • Metadata – data about the data (units, etc)

  13. CSE 351 Simulation Technologies • Simulation environments • Programming/modelling languages • Model characteristics supported

  14. CSE 351 Simulation Technologies To be continued

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