Configuration change management methods, configuration change management systems, and nodes

摘要

PROBLEM TO BE SOLVED: To efficiently confirm the system as a whole with good accuracy within the authority of each organization when changing the configuration of a BC system. SOLUTION: In a configuration change management system 1 which is a blockchain system, a node 100 constituting the blockchain system has an influence confirmation item based on the configuration information of the organization to which the node belongs with respect to a configuration change request for the blockchain system. The configuration includes an arithmetic device 101 that extracts the impact confirmation items to be confirmed as the entire blockchain system by sharing and recursively processing the impact confirmation items with other nodes. [Selection diagram] Fig. 2