 Safety and the avoidance of risk are major concerns in practical engineering. Safety engineering has also increasingly become the subject of academic investigations. However, these discussions are largely fragmented between different areas of technology. The same basic ideas or “safety philosophies” are discussed under different names for instance in chemical, nuclear, and electrical engineering. Nevertheless, much of the basic thinking seems to be the same in the different areas of safety engineering (Möller and Hansson 2008). 