Understanding System of Systems (SoS) requires novel ways to apply systems engineering processes. Acknowledged SoS have recognized objectives, a designated manager and resources for the SoS. The goal of this research is to develop a proof of concept tool suite for Acknowledged SoS systems simulation. This suite is named flexible, intelligent and learning architectures for System of Systems (FIL...

Systems of Systems (SoS) have received a lot of attention recently. In this thesis we will focus on SoS that are built atop the techniques of Service-Oriented Architectures and thus combine the benefits and challenges of both paradigms. For this thesis we will understand SoS as ensembles of single autonomous systems that are integrated to a larger system, the SoS. The interesting fact about the...

One of the primary challenges for decision makers during concept exploration in engineering system design is selecting designs that are valuable throughout the operational lifetime of the system. The problem is even more difficult when designing Systems of Systems (SoS), which are dynamic, complex, higher-order systems that may be composed of both legacy and new component systems. There are sev...

When you create a System of Systems (SoS), you are doing wilful design. It follows that you need a safety case: a justification of why that system will be safe. All safety cases must have certain common properties: they must focus on risk, they must provide appropriate confidence in their claims, and they must have a clear relationship to a causal model of the system's safety behaviour. None of...

As organizations strive to expand system capabilities through the development of system-ofsystems (SoS) architectures, they want to know “how much effort” and “how long” to implement the SoS. In order to answer these questions, it is important to first understand the types of activities performed in SoS architecture development and integration and how these vary across different SoS implementat...

As organizations strive to expand system capabilities through the development of system-ofsystems (SoS) architectures, they want to know "how much effort" and "how long" to implement the SoS. In order to answer these questions, it is important to first understand the types of activities performed in SoS architecture development and integration and how these vary across different SoS implementat...

A System of Systems (SoS) is an arrangement of useful and independent complex systems, which are integrated into a bigger system that delivers unique capabilities [1]. In this context, it is important to notice that each independent system should be capable of operate and fulfil useful purposes on its own environment, but, when these independent systems are together and become a SoS they are ab...

Ensuring resilience – the ability to remain dependable in dynamic environment – constitutes a major challenge for engineering systems-of-systems (SoS). In this paper, we take a mission-centric view on the behaviour of SoS and demonstrate how to formally reason about their dependability. We use Event-B as our modelling framework and demonstrate how to formally specify and verify generic system-w...

Resilience is the ability of a system or organization to react to and recover from disturbances with minimal effect on its dynamic stability. While the resilience of system-of systems (SoSs) depends on the reliability of their constituent systems, traditional reliability approaches cannot adequately quantify their resilience. Given the heterogeneity and often wide geographic distribution of SoS...