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Modeling for System´s Understanding
Abstract
The purpose of this chapter is to provide an overview of System Dynamics modeling and to highlight its potential as a tool for system´s understanding. Although the work is not intended to cover all the activities involved in a simulation process, the authors present the steps in the modeling process. The authors first summarize the role of Causal Loop diagrams in the modeling process. The authors then introduce Stock-and-flow diagrams and describe how they can be defined using mathematical functions. Along this chapter the authors claim that System Dynamics is an adequate modeling tool for “partially reducible uncertainty” and “irreducible uncertainty” problems. Finally, the authors discuss that in System Dynamics, validity means adequacy with respect to a purpose, and hence it cannot be made in absolute terms and the authors briefly introduce a set of techniques for testing structure and accuracy.
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