Process management system

摘要

The system has network subscribers (1-4) linked together and spatially distributed with secured communication between the network subscribers. Integrity of communication is based on exchange of certificates (7). A central certification authority (5) is formed as an integral component of the system, and assigns and distributes the certificates. The certification authority is linked to the management system via separate system components and arranged on process-oriented components. The system generates system alarm when the authority is not provided at a communication network (6).