Today's Agenda Examples of safety and quality problem a Models of accident causality Accident causal analysis based on system theory Case:U.S.Coast Accident CLGO System Engineering by J.J.Gao 10+ - 10 Today’s Agenda  Examples of safety and quality problem  Models of accident causality  Accident causal analysis based on system theory  Case: U.S. Coast Accident System Engineering by J. J. Gao