Integrative Complexity: An Alternative Measure for System Modularity
Author(s)
Suh, Eun Suk; Sinha, Kaushik; De Weck, Olivier L
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Complexity and modularity are important inherent properties of the system. Complexity is the property of the system that has to do with individual system elements and their connective relationship, while modularity is the degree to which a system is made up of relatively independent but interacting elements, with each module typically carrying an isolated set of functionality. Modularization is not necessarily a means of reducing intrinsic complexity of the system but is a mechanism for complexity redistribution that can be better managed by enabling design encapsulation. In this paper, the notion of integrative complexity (IC) is proposed, and the corresponding metric is proposed as an alternative metric for modularity from a complexity management viewpoint. It is also demonstrated using several engineered systems from different application d omains that there is a strong negative correlation between the IC and system modularity. This leads to the conclusion that the IC can be used as an alternative metric for modularity assessment of system architectures.
Date issued
2018-05Department
Massachusetts Institute of Technology. Department of Aeronautics and Astronautics; MIT Sociotechnical Systems Research CenterJournal
Journal of Mechanical Design
Publisher
ASME International
Citation
Sinha, Kaushik, et al. “Integrative Complexity: An Alternative Measure for System Modularity.” Journal of Mechanical Design, vol. 140, no. 5, Mar. 2018, p. 051101. © 2018 by ASME
Version: Final published version
ISSN
1050-0472