Variability-Considered Hazards Analysis Technique in Collaboration Environments of Multiple Cyber-Physical Systems

Nazakat Ali, Jang Eui Hong

http://doi.org/10.5626/JOK.2020.47.9.820

When multiple cyber-physics systems collaboratively work together to achieve a common mission, unexpected and diverse situations can arise. These variable situations in their functioning are not caused by defects or failures of system elements, but by environmental factors in the context of collaboration. With the recent publication of the SOTIF standard, new safety criteria have been proposed that consider these environmental and variable factors. This paper proposes a hazard analysis technique that considers the variability by extending the existing safety analysis techniques of the software systems. The proposed technique will provide safety for functional behaviors in multi-CPS collaboration.