The article describes the strategy for developing a system for the operational analysis of the functioning of an automated control system, consisting of central control system and associated systems of various purposes. The presented system implements predictive maintenance and addresses the following tasks: automated detection of causes for incorrect functioning during testing and operation, prevention of quality degradation, detection of hidden defects, continuous integration with full lifecycle systems, unification of the core for addressing similar tasks, and ensuring information protection. The technologies for development and the system architecture are described, and the ergonomics of the user interface are discussed. It is concluded that the proposed solutions contribute to improved quality of operation and modernization of the automated control system by providing proactive responses to equipment faults and ensuring traceability of information throughout the entire lifecycle.