Computer simulation is the electronic equivalent of this type of role playing and it serves to drive synthetic environments and virtual worlds. Within the overall task of simulation, there are three primary sub-fields: model design, model execution and model analysis (see Fig. 1). The chapter annotations in Fig.
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Affirmation, Affirmations or Affirm may refer to: Affirmation, a declaration that something is true. In logic, the union of the subject and predicate of a proposition. Affirmation in law, a declaration made by and allowed to those who conscientiously object to taking an oath. Affirmed in law, means that a decision has been reviewed and found valid.