Systems Theoretic Process Analysis (STPA)
Controlled Process Unidentified or out-of-range disturbance Controller Process input missing or wrong Process output contributes to system hazard Incorrect or no information provided Measurement inaccuracies Feedback delays Delayed operation Conflicting control actions Missing or wrong communication with another controller Controller
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NANCY G. LEVESON JOHN P. THOMAS - MIT Partnership for ...
psas.scripts.mit.eduThis handbook is intended to assist those who want to start using STPA or who want to try using it for more than simple hazard analysis. As such, we tried to provide examples and have included more ... The functional components of an aircraft, for example, might be propulsion, navigation, attitude control, braking, cabin environment control ...
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