SIMULATION OF STOCHASTIC MICROPOPULATION MODELS .1. THE SUMMERS SIMULATION SHELL

A generic, abstract model and the simulation shell based on it, both c alled SUMMERS, are used as a framework for the implementation of stoch astic micropopulation models; in these, each individual is followed se parately while moving through a sequence of states. The shell supports groups of interacting members, individual characteristics and multipl e simultaneous activities. Stochastic decisions may be made using Mont e Carlo rules. Keywords control the simulations and the reports genera ted. A sensitivity analysis utility allows assessment of the dependenc y of outcomes on model features. Extensive use has been made of softwa re engineering techniques. Specializations of SUMMERS are described in subsequent papers.