Design indices for information connection in decentralized system

A decentralized system, consists of multiple subsystems is expected to adapt to the various environmental condition or the alteration of the internal system. In this paper, informational interaction among subsystems in the whole system is considered from a view point of system connection. Based on it, framework of the design method in decentralized system is discussed for variable structure of information connection. In order to express the system connection, a connection matrix is adopted. Using it, a reachability matrix, which shows a hierarchy and a closed- loop structure, is derived. Moreover, the maximum eigenvalue and its eigenvector of connection matrix are adopted as the design indices for the system connection, which has loop structures. In addition, the structural analysis method is described for recognizing and designing the informational loop structure.