Behrang MORADI, Nicolas DACLIN, Vincent CHAPURLAT (firstname.lastname@mines-ales.fr) LGI2P, Ecole des Mines d'Alès Systems of Systems Engineering A system of system (SoS) is an integration of a finite number of constituent systems which are independent and operable, and which are networked together for a period of time to achieve a certain higher goal. 1 [Jamshidi, 2009]. SoS are composed of separate constituent systems and have a majority of the following five characteristics 2 [Maier, 1998]: Operational independence-constituent has a purpose of its own and can be operated independently, without the need to interact with other systems. Managerial independence-constituent are controlled by different authorities (or system owners), they not only have operational independence but are, actually, operated independently. Emergent behavior-behaviors are only exhibited at the SoS level and cannot be achieved by any of the constituent systems operating independently of the other constituent systems. Evolutionary development-SoS is not created once and for all, but evolves as constituent systems, or functions thereof, are added, removed, or modified. Geographical distribution-the concern of SoSE is primarily with the information exchange between constituent systems. Fig.1. A Transport System-of-Systems Resilience Ability to prevent, prepare for, respond to, adapt to disruptions and to mitigate the consequences as well as to recover in timely and efficient manner including preservation, restoration of services 3 [Cutter et al. 2013]. Fig.2. Illustration of essential resilience capabilities.