Recent social and technical development affects greatly on human performance in the social-technical system. It makes the system, which was originally based on domino theory, no more efficient in preventing the accident due to human factor. An integration of technical, organizational and cultural measures must be taken to prevent the accident in depth. Authors suggest establishing an active system model for preventing in depth the accident due to human factor, which includes five stages, namely policy making, prediction analysis, accident reduction strategy, operation and feedback. In this sys...
