System Dynamics Glossary
What is the meaning of Complexity Index?
The Complexity Index, C, is used to indicate
inherent complexity of a problem, or class of problems. The
Complexity Index is defined in terms of:
= The number of independent Variables needed to describe the
state of the system.
P = The number of independent
Parameters needed to distinguish the system from other systems in
the same class.
L = The number of control feedback
Loops both within the system and connecting the system to
The upper and lower values of C
are defined as
V + P + L >
C >V . P . L,
noting that when L
= 0, or V and P both have low values,
C is taken to be V + P + L.
For a particular system, the location of the value of
C between these upper and lower bounds will depend on
the degree of ‘connectedness’ within the structure of the system
and between the system and its surroundings (Kline, 1995: 49-51).
Related to Complexity Index
Kenneth W Regan, "Index sets and presentations
of complexity classes (Technical report / University at Buffalo, State
University of New York, Dept. of Computer Science)".
on Index sets and presentations of complexity classes (Technical
report / University at Buffalo, State University of New York,
Dept. of Computer Science)
Jan Ray Thurman, "Variation of stimulus complexity
and the predictive index in the Land color demonstration".
information on Variation of stimulus complexity and the predictive
index in the Land color demonstration
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