ISO 26262 is the de facto standard for automotive functional safety, and every automotive Original Equipment Manufacturer (OEM), as well as their major suppliers, are striving to ensure that their development processes are ISO 26262 compliant. ISO 26262 mandates both hazard analysis and risk assessment. Systems Theoretic Process Analysis (STPA) is a relatively new hazard analysis technique, tha...

Industry is increasingly adopting software and system safety standards that mandate the use of hazard logs in the development and operation of safety critical systems. Hazard logs are used to record and track the results of hazard analysis and risk assessment throughout the lifecycle of the system. Even relatively simple systems give rise to large amounts of information and the need for tools t...

In an earlier paper (Redmill 2002) risk analysis was defined as comprising four stages scope definition, hazard identification, hazard analysis, and risk assessment. In the first stage, the scope and terms of reference of the analysis are defined. In the second, the hazards that could lead to breaches of safety are identified. In the third, the risks associated with the hazards are determined, ...

System Design According to ISO/EN 13849-1:2006 Safety Strategy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15 Risk Assessment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15 Machine Limit Determination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-16 Task and Hazard Ident...

The United States alone spends about $700B per year on new and renovated construction. About 20% of this is to assure safety from unwanted fires, which includes the cost of insurance, to make families whole after fires and to recover from business loss. This is an enormous cost to endure every year. Combined with a growing construction market in other countries, this presents a major opportunit...