A model is a schematic representation of our conception of a system. A model brings into mind the functional form of a real object, such as children's toys, a tailor's dummy, and mock-ups of buildings and structures to be later constructed in the real forms. Models also construct objects or situations not yet in existence in real form. A model can also be referred to as a representation of a relationship under consideration and may be defined as an act of mimicry. Models can be broadly divided into statistical models and dynamic simulation models.
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