Model-based Framework for Addressing Diversity, Usability and Reliability for Safety Critical Interactive Systems

This paper proposes a notation and an architecture for the management of failure on input devices for safety critical interactive systems. This management of failure is done by means of a reconfiguration of input devices configuration and interaction techniques. Such reconfiguration aims at allowing operators to still interact with the interactive system. In complement with this input device configuration problem the approach also addresses the issue of output device reconfiguration. Such problems arise in domains such as command and control systems where the operator is confronted with several display units. Due to space constraints the paper focuses on the reconfiguration of output devices. The contribution presented in the paper thus addresses usability issues (improving how operators can reach their goals while interacting with the system) by increasing the reliability of the system using diverse configuration both for input and output devices.