Tsystems engineered in modern society are ex- tremely complex and this makes it increasing difficult to provide assurance for interrelated system quality attributes including safety, security and performance. This is particularly the case for real-time systems where human life is at stake, such as in the transporta- tion, aerospace, medical and industrial control domains. Interacting, non-functional system properties are diffi- cult to track and balance across and within all phases of the product lifecycle. Design trade-offs are normal, for instance when security mechanisms impact the perfor- mance of some subsystems, which in turn may be es- sential for system safety. Often, a balance found early in the lifecycle must later be changed during the detailed design phase. The problem is further compounded by the need to maintain safety-critical systems, which typi- cally have a very long lifetime, often of decades. It is of the outmost importance that the co-engineering principles are brought into mainstream practice. Achiev- ing the associated advanced solutions will have many benefits, including: - realising the capability to efficiently analyse the trade-offs between system quality attributes at all stages of the product lifecycle; - design breakthroughs for architecting, thanks to an effective engineering support; - providing a more effective ability to implement systems, reducing engineering cost for building and maintaining these systems. Participating organisations in this endeavour will enjoy a decisive competitive advantage when dealing with standards for safe and secure pervasive systems, as well as meeting client performance requirements. In addition, it will enable easier access to supply chains or system integration, and improved design capability for Systems of Systems and Internet of Things.