THE EXTENDED SYSTEM DYNAMICS METHOD AND ITS TOOLS

The integration of System Dynamics with LP‐ and Input‐Output models is realized by means of simple examples. Aspects of programming techniques as well as the conceptual meaning of this model‐method integration are discussed. By the combination of the stated methods with System Dynamics models an improved flexibility of the System Dynamics method is obtained. The optimization of a Simulation model is represented by the integration of a System Dynamics model into a higher level feedback loop structure. The optimization algorithm, the Razor Search procedure, modifies the parameters of the control vector in order to generate the optimal behaviour of the state vector of the model in relation to an objective function.