Trustworthiness is a critical concern stakeholders have about Cyber-Physical Systems (CPS) and the Internet of Things (IoT) and their deployment. The National Institute of Standards and Technology's Smart Grid and Cyber-Physical Systems Program Office released its CPS Framework in May 2016 and, there, trustworthiness is captured as a high-level concern encompassing safety, security, privacy, resilience, and reliability. While there are many efforts, in multiple sectors, to study these characteristics of systems they are typically considered separately and in isolation. This can result in work, intended to address one of these concerns, adversely impacting work to address one or more of the others. Thus CPS/IoT trustworthiness relies on an integrated, concern-driven approach that takes into account the interactions between the cyber and physical elements of systems.

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