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Abstract
STPA (System-Theoretic Process Analysis), is a new hazard analysis technique designed to “eliminate or control scenarios” before they result in losses (Leveson 2011). STPA is based upon an analysis of loss of functional control of a process rather than on an analysis of failure of individual components. Therefore, the model that is used in STPA is a functional control diagram rather than a physical component diagram (Leveson 2011). STPA provides guidance to the users, as opposed to other hazard analyses. In addition, STPA can be used before a system ...
