Synchronization mechanism of autonomous decentralized systems modelled by state machine decomposable nets

A stronger necessary and sufficient condition for a net to be a state machine allocatable (SMA) net is derived, and a modified condition that can be verified in polynomial time and space is obtained. A complete structural characterization of SMA nets that can be used to design a live and safe free choice system by strongly connected state machine (SCSM) composition techniques is obtained. Dynamical properties of LSFC nets, especially the reachability of LSFC nets, can also be analyzed by using the structural properties of SMA nets obtained here.<>