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Maria Mikela Chatzimichailidou, Stefanos Katsavounis, & Ioannis M. Dokas. (2015). A Measure of Systems Self-Awareness. In L. Palen, M. Buscher, T. Comes, & A. Hughes (Eds.), ISCRAM 2015 Conference Proceedings ? 12th International Conference on Information Systems for Crisis Response and Management. Kristiansand, Norway: University of Agder (UiA).
Abstract: In order to be proactive to accidents, there is a need to limit systems? threats and vulnerabilities by being able to perceive and comprehend them as early as possible. Under this notion, the concept of ?risk Situation Awareness provision capability? is introduced, indicating that the elements of a system, tangible or not, have an impact on the enhancement or degradation of the awareness, in reference to its threats and vulnerabilities. As a means of measuring this capability, a methodology, based on existing yet not combined methods, i.e. STPA hazard analysis, EWaSAP early warning sign identification approach, and dissimilarity measures, is offered. This paper looks at analogous SA measurement techniques and finally discusses some limitations and future research directions.
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Sardar Muhammad Sulaman, Taimor Abbas, Krzysztof Wnuk, & Martin Höst. (2014). Hazard analysis of collision avoidance system using STPA. In and P.C. Shih. L. Plotnick M. S. P. S.R. Hiltz (Ed.), ISCRAM 2014 Conference Proceedings – 11th International Conference on Information Systems for Crisis Response and Management (pp. 424–428). University Park, PA: The Pennsylvania State University.
Abstract: As our society becomes more and more dependent on IT systems, failures of these systems can harm more and more people and organizations both public and private. Diligently performing risk and hazard analysis helps to minimize the societal harms of IT system failures. In this paper we present experiences gained by applying the System Theoretic Process Analysis (STPA) method for hazard analysis on a forward collision avoidance system. Our main objectives are to investigate effectiveness in terms of the number and quality of identified hazards, and time efficiency in terms of required efforts of the studied method. Based on the findings of this study STPA has proved to be an effective and efficient hazard analysis method for assessing the safety of a safety-critical system and it requires a moderate level of effort.
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