Safety, Security, and Health

Safety, security, and health are essential and critical properties within Systems Engineering. Each of them is represented by an engineering discipline with its conventions, definitions, and standards, also regarding Human System Interaction (HSI) issues. Their integrated consideration has, however, not been addressed so far. Remarkably little guidance is available that goes beyond conventional management of single risks. Also, the role of HSI remains vague, both in state-of-the-art publications and engineering management plans. This paper analyzes the roles of individual and organizational professionalism, considering the system’s users not simply as stakeholders amongst others, but as key contributors to safety, security, and health engineering. Some conceptual proposals are derived, e.g., introducing a human-of-interest (HoI) equivalent to the system-of-interest (SoI). A better understanding of the valuable and detrimental human contribution will help to identify and scope the expectations toward a structured integration of humans into the systems they have made.