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In recent years, in the industry, real-time decision making integrating plant field and business systems information has become indispensable. In addition, with the arrival of the ubiquitous information society, the use of sensors in the field and information utilized for business are increasing. In this environment, handling field information in real time and connecting it with business is a crucial challenge. With condition-based management, the facilities are monitored and are kept in good condition depending on their state rather than according to a prescribed schedule. However, in the event of a facilities error, demand for access to the same data centers increases, degrading response performance. A method is described for delivering information data to operating applications as triggered by a control event. In the event of a facilities error, access to information data is integrated, and the information data is duplicated and delivered to operating applications. Then, concentrated demand for access to information data can be avoided, and the response performance of operating applications can be ensured. Since the method has not been tested, it is now necessary to perform a feasibility study including performance verification.