page_61 - of Chapter 2 this is superficially complex). All...

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< previous page page_61 next page > Page 61 Chapter 4 System Dynamics (SD) Nothing puzzles me more than time and space; and yet nothing troubles me less, as I never think about them. Charles Lamb in a letter to T. Manning, 2 January 1810. 4.1 Introductio n The seminal ideas of system dynamics (SD), originally known as industrial dynamics, can be attributed to Jay Forrester and his work at the Massachusetts Institute of Technology. He developed a theory of information feedback and control as a means of evaluating business and other organisational and social contexts. This also involved developing an analytical modelling methodology.
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The essential ideas are very basic. It is argued that any situation can be considered as complex, but mainly in terms of elements and "flows"; flows being the relationships between the elements (in terms
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Unformatted text preview: of Chapter 2 this is superficially complex). All influential elements must be included within a boundary. Connecting elements may form loops and hence feedback analysis is considered very important. In fact, a SD model could look very similar in diagrammatic form to the general conception of system that can be found in Chapter 1, particularly in Figure 1.1 (although inputs and outputs transcending the boundary are restricted in a SD model). It is a simple use of standard traditional systems ideas, called systems theory, that have been developed into the elegant mathematics of linear control theory and the much more troublesome non-linear control theory in other domains, such as control engineering. Its accessibility, however, makes SD an approach that can be understood < previous page page_61 next page >...
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This note was uploaded on 04/21/2011 for the course MGT 03 taught by Professor Kasra during the Spring '11 term at Tanta University.

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page_61 - of Chapter 2 this is superficially complex). All...

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