1. ^aSupport technology Group, Fujitsu Fsas Inc, Minato-ku, Tokyo, Japan
2. ^bDepartment of Value and Decision Science, Tokyo Institute of Technology, Meguro-ku, Tokyo, Japan

Correspondence: Kyoichi Kijima, Department of Value and Decision Science, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8552, Japan. E-mail: kijima@valdes.titech.ac.jp

Abstract

The need for more effective ways to manage risk of technological systems and ensure safety continues to grow in industry. Risk management tends to be considered part of the process of planning technological systems, though, not as part of day-to-day operations. However, risk must also be considered with respect to emergent events that require taking action in ways which differ from planned operational procedures. This paper proposes a new methodology for learning from system failures to prevent further occurrences. The proposed methodology is unique and significant in how it can change industrial maintenance systems through a shift from reactive to proactive ways. The clarification of mechanisms that are prone to failure and corresponding preventative measures will be invaluable to society as a whole.