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A well-known, albeit likely false claim of the use of simulated reality outside of virtual worlds is the Potemkin village, which has become a term to describe a faked appearance of a real situation to create a false impression.
Image of a real apple (left), and plastic food model apple (right). The fake apple is a simulacrum. A simulacrum (pl.: simulacra or simulacrums, from Latin simulacrum, meaning "likeness, semblance") is a representation or imitation of a person or thing. [1]
The computer simulates the subject machine. Accordingly, in theoretical computer science the term simulation is a relation between state transition systems, useful in the study of operational semantics. Less theoretically, an interesting application of computer simulation is to simulate computers using computers.
Intuitively, a system simulates another system if it can match all of its moves. The basic definition relates states within one transition system, but this is easily adapted to relate two separate transition systems by building a system consisting of the disjoint union of the corresponding components.
A model consists of the equations used to capture the behavior of a system. By contrast, computer simulation is the actual running of the program that perform algorithms which solve those equations, often in an approximate manner.
Modeling and simulation (M&S) is the use of models (e.g., physical, mathematical, behavioral, or logical representation of a system, entity, phenomenon, or process) as a basis for simulations to develop data utilized for managerial or technical decision making.
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Adaptive Simulations - cloud based and fully automated CFD simulations.; Akselos - reduced-basis finite element-based simulation software for structural and thermal analyses.