Providing Assurance that Risks Associated with Electromagnetic Disturbances are Sufficiently Managed

Over the last decade, awareness has grown that compliance to EMC standards does not necessarily imply that all properties of a system, such as reliability, safety, and security, are adequately assured when the system is exposed to electromagnetic disturbances. While the application of a risk-based approach has been proposed to overcome this issue, a methodology to demonstrate that the employed risk-based activities provide compelling arguments and evidence to assure the properties of interest seems to be missing. In this paper, the application of assurance cases and associated activities in demonstrating properties like safety and security of systems in the presence of electromagnetic disturbances is explored by using Goal Structured Notation (GSN) to present the structure of the assurance argument.