Mashayekhi, Ali Naghi, "From Static Picture to a Dynamic Problem Definition", 1992
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Problem definition is the first and the most crucial stage in any System Dynamics study. A good and clearly defined problem is prerequisite to a good System Dynamics modeling. However, the way that a good dynamic problem is defined is subtle, is not well formulated and is not well taught. This paper presents a structured approach to dynamic problem definition that starts from static picture of the real world and turns it into a dynamic problem. The paper argues that most people are familiar and capable to present static picture of the situation of a real world system. The paper uses such a familiar picture as a starting point to define a dynamic problem. The approach is applied to develop a problem definition for a railway company as an example.