A framework for modeling the consequences of the propagation of automation degradation: application to air traffic control systems

Abstract : This paper presents a modelling approach for representing consequences of automation degradation in the context of a socio-technical network. This modelling approach involves two different notations. In previous work we have proposed a synergistic approach integrating these two views for describing the evolution of system performances under automation degradation. In the current paper we propose a more global approach encompassing the previous contribution and being specifically addressing the representation of consequences flowing from the occurrence of automation degradation. In this approach, four modelling levels of consequences are studied: direct consequences of automation propagation, consequences on the capacity to respond, consequences on resilience capacity and consequences on network performance. This stepwise refinement aims at acquiring and modelling additional information needed for being able to assess the consequences of automation degradation. The approach is exemplified on a case study in the domain of Air Traffic Management and more precisely Terminal Manoeuvre Area including an Arrival Manager (AMAN). Due to space constraints only the first level is fully presented.