An Approach to Design for Safety in Complex Systems
نویسندگان
چکیده
Most traditional hazard analysis techniques rely on discrete failure events that do not adequately handle software intensive systems or system accidents resulting from dysfunctional interactions between system components. This paper demonstrates a methodology where a hazard analysis based on the STAMP accident model is performed together with the system development process to design for safety in a complex system. Unlike traditional hazard analyses, this approach considers system accidents, organizational factors, and the dynamics of complex systems. The analysis is refined as the system design progresses and produces safety-related information to help systems engineers in making design decisions for complex safety-critical systems. The preliminary design of a Space Shuttle Thermal Tile Processing System is used to demonstrate the approach.
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