System of Systems Architecting: A Behavioural and Properties Based Approach for SoS '-ilities' Modelling and Analysis

摘要

Architecting a System of Systems (SoS) is a complex task. Capabilities of heterogeneous and interactive sub-systems are composed to fulfil a mission, while preserving, as possible, the autonomy, independence, geographic distribution... of sub-systems and to face up efficiently while remaining as resilient as possible to disturbances and emergent phenomenon. The "-ilities" are relevant non-functional abilities (e.g. robustness, resilience, flexibility, adaptability, survivability, interoperability…) for guiding SoS architects and managers to choose and interface sub-systems. The goal is to become able to increase or decrease the value of these "-ilities" thanks to their interest for the SoS mission. The here presented work aims to support resilient SoS design and, in particular, their architecting by proposing a formalised model of property allowing to define and describe an "-ility" and a behavioural modelling approach to evaluate it.