Chapter1 - Chapter 1 Introduction to Simulation Banks,...

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Unformatted text preview: Chapter 1 Introduction to Simulation Banks, Carson, Nelson & Nicol Discrete-Event System Simulation 2 Outline ¡ When Simulation Is the Appropriate Tool ¡ When Simulation Is Not Appropriate ¡ Advantages and Disadvantages of Simulation ¡ Areas of Application ¡ Systems and System Environment ¡ Components of a System ¡ Discrete and Continuous Systems ¡ Model of a System ¡ Types of Models ¡ Discrete-Event System Simulation ¡ Steps in a Simulation Study 3 Definition ¡ A simulation is the imitation of the operation of real-world process or system over time. ¢ Generation of artificial history and observation of that observation history ¡ A model construct a conceptual framework that describes a system ¡ The behavior of a system that evolves over time is studied by developing a simulation model . ¡ The model takes a set of expressed assumptions: ¢ Mathematical, logical ¢ Symbolic relationship between the entities 4 Goal of modeling and simulation ¡ A model can be used to investigate a wide verity of “what if” questions about real-world system. ¢ Potential changes to the system can be simulated and predicate their impact on the system. ¢ Find adequate parameters before implementation ¡ So simulation can be used as ¢ Analysis tool for predicating the effect of changes ¢ Design tool to predicate the performance of new system ¡ It is better to do simulation before Implementation. 5 How a model can be developed? ¡ Mathematical Methods ¢ Probability theory, algebraic method ,… ¢ Their results are accurate ¢ They have a few Number of parameters ¢ It is impossible for complex systems ¡ Numerical computer-based simulation ¢ It is simple ¢ It is useful for complex system 6 When Simulation Is the Appropriate Tool ¡ Simulation enable the study of internal interaction of a subsystem with complex system ¡ Informational, organizational and environmental changes can be simulated and find their effects ¡ A simulation model help us to gain knowledge about improvement of system ¡ Finding important input parameters with changing simulation inputs...
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Chapter1 - Chapter 1 Introduction to Simulation Banks,...

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