A system "in which the interactions among the subsystems are weak, but not negligible" (H. SIMON, 1965, p.69).
The subsystems and their interactions can generally be represented in a matrix divided into submatrixes, wherein most intersections between columns and lines are void.
SIMON enounces the following propositions relative to these systems:
"a)… the short run behavior of each of the component subsystems is approximately independent of the short -run behavior of the other components;
"b) in the long run, the behavior of anyone of the components depends in only an aggregate way on the behavior of the other components" (Ibid).
SIMON adds: "intra-component linkages are generally stronger than intercomponent linkages. This fact has the effect of separating the high-frequency dynamics of a hierarchy – involving the internal structure of the components – from the low-frequency dynamics – involving interaction among components" (p.72).
According to SIMON, the nearly decomposable system model can be widely used, for social and economic systems, as well as for many physico-chemical systems, whose parts are very imperfectly connected.
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To cite this page, please use the following information:
Bertalanffy Center for the Study of Systems Science (2020). Title of the entry. In Charles François (Ed.), International Encyclopedia of Systems and Cybernetics (2). Retrieved from www.systemspedia.org/[full/url]
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