Ensuring a correct behaviour of Systems of Systems (SoS) has a significant social impact. Their complexity and inherent dynamicity pose a serious challenge to traditional design methodologies. We propose a methodology and a tool-chain supporting continuous validationof SoS behaviour against formal requirements, based on a scalable formal verification technique known as Statistical Model Checking (SMC). We integrate SMC with existing industrial practice, by addressing both methodological and technological issues. Our contribution is summarized as follows: (1) a methodology for continuous and scalable validation of SoS formal requirements; (2) a natural-language based formal specification language able to express complex SoS requirements; (3)...