Systems of systems, cyber-physical systems, the internet-of-things… Whatever next?

This paper considers the concepts of Systems of Systems, Cyber-Physical Systems, and the Internet-of-Things. Although originating from different domains and perspectives, there is considerable convergence of the three concepts in terms of future complex systems, and it is concluded that the Internet-of-Things is essentially a Cyber-Physical System of Systems which will require new approaches in systems engineering to be developed.