ABSTRACT

Setting a higher goal for long-term system performance requires a variety of improvements such as improving yield, reducing operation time, and increasing reliability, which in turn leads to a variety of changes such as modifying the artifact (i.e., technical system), changing operating methods (either formally or informally), and relaxing safety criteria. These changes may implant potential hazards such as a more complicated artifact (i.e., technical system), more difficult operation, and smaller safety margins, which further may result in decreased reliability, decreased safety, and decreased longterm performance. The end results may be long interruptions or even the termination of business. It is important to understand that adaptive and proactive human behaviors are often acting as risk-taking compensation for the potential hazards behind the scenes, even though they are often admired as professional jobs. A resilient system can cut this evil chain by detecting and eliminating potentially hazardous side effects caused by changes.