Simualtion_notes

What is System
¨A system is a set of components which are related by some form of interaction and which act together to achieve some objective or purpose
nComponents are the individual parts or elements that collectively make up the system
nRelationships are the cause-effect dependencies between components
nObjective is the desired state or outcome which the system is attempting to achieve

What is Simulation
¨A simulation of a system is the operation of a model of the system, as an imitation of the real system
¨A tool to evaluate the performance of a system, existing or proposed, under different configurations of interest and over a long period of time
ne.g. a simulation of an industrial process to learn about its behavior under different operating conditions in order to improve the process
nReasons for Simulation
¨Experiments on real systems are too expensive, too dangerous, or the system to be investigated does not yet exist

ne.g. Investigating ship durability by building ships and letting them collide is a very expensive method of gaining information; training nuclear plant operators in handling dangerous situations by letting the nuclear reactor enter hazardous states is not advisable


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