Uncertainty treatment in risk analysis of complex systems: The cases of STAMP and FRAM

Several approaches to systems thinking have been proposed to understand and model complex socio-technical systems and potential accidents, including the System-Theoretic Accident Model and Processes (STAMP) with the associated hazard analysis method System Theoretic Process Analysis (STPA), and the Functional Resonance Analysis Method (FRAM). It is argued that these approaches are suitable for the risk analysis of complex socio-technical...