Purdue Engineering Distinguished Lecture Series: Nancy Leveson, lecture

As part of the Purdue Engineering Distinguished Lecture Series, Nancy Leveson gave a lecture on "A Paradigm Change for System Safety Engineering (and Security)."
Systems today are becoming increasingly complex and software-intensive. At the same time, human roles are changing along with the types of errors that the operators of these systems are making. These changes in engineering are leading to new causes of accidents. But the traditional approaches to safety engineering, created 50 to 70 years ago, are based on assumptions about system design that are no longer true. In this presentation I’ll suggest what is needed to prevent unnecessary losses, including a paradigm change in how we think about and deal with safety and security. This new approach, based on systems theory, is now being used successfully in just about every industry around the world and on the most complex systems humans have tried to create. It has been shown through both scientific evaluation and empirical use to be both more powerful and, and surprisingly, less expensive.
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