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This paper presents an efficient method, called xTAN for extended Tensorial Analysis of Networks. This method is based on the Krons method and game theory. This method can be used to model the behavior of complex electronic systems from an electromagnetic compatibility point of view. In this article, we have developed the xTAN method for a cyber-physical system (CPS) under electromagnetic environment...
Complex systems with high dimensional design spaces are often specified by subsystem compositions that constrain feasible designs towards tight regimes in the design space. Composition between (sub)systems is limited by the interfaces exposed by the interacting architectures. Treating architectures as first class objects with their own formal properties is required to enable designing complex systems...
Cyber-Physical Systems are developed through complex engineering projects that include many stakeholders and a variety of tools and processes from different engineering backgrounds. Interoperability in these development tool chains is an important aspect for well-integrated systems. Furthermore, since full tool chain interoperability is neither possible nor necessarily desired, measuring interoperability...
The Future Internet era dictates the deployment of high complexity systems having a variety of properties such as adaptivity, self-configuration and self-optimization. This paper discusses on the design and deployment of a context-aware management architecture, for mixed-criticality applications. The architecture of an autonomous smart building system is described, focusing on diverse requirement...
Cyber-Physical Production Systems (CPPS) help to cope with complexity and offer the computing platforms for sophisticated data analytics in smart factories. Nevertheless, in the operation of CPPS, the integration of tacit knowledge of the human as a maintainer has not been considered yet for the improvement of monitoring and diagnosis processes in production systems. The basic motivation for this...
Systems-of-Systems (SoSs) are evolutionary developed from independent systems to achieve missions through emergent behavior. As concrete systems which will actually participate in an SoS are, in general, not known at designtime, SoSs need to dynamically create coalitions among possible constituent systems at run-time. Due to these uncertainties, the SoS architecture needs to be described abstractly...
Autonomous and intelligent construction equipment is an emergent area of research, which shares many characteristics with on-road autonomous vehicles, but also have fundamental differences. Construction vehicles usually perform repetitive tasks in confined sites, such as quarries, and cooperate with other vehicles to complete common missions. A quarry can be viewed as a system-of-systems and the vehicles...
Teleoperation remains an important aspect for robotic systems especially when deployed in unstructured environments. While a range of research strives for robots that are completely autonomous, many robotic applications still require some level of human-in-the-loop control. In any situation where teleoperation is required an effective User Interface (UI) remains a key component within the systems...
In this paper, we assess state-of-the-art methods for handling aspects of technical, commercial and operational uncertainty in the early stages of offshore ship design. Uncertainty affects the lifecycle performance of a ship in a complex manner, which is difficult to assess in the early design process. We approach this problem by decomposing uncertainty into technical, commercial and operational aspects,...
The conditional responses arising from the actions and interactions among the elements of a disaggregated collection of specialized systems is the basis for understanding Systems-of-Systems (SoS). Underlying the collective response of a SoS, the strength of the conditioning on both internal actions and interactions across elements is the foundation on which the well-known properties ascribed to SoS...
Complexity of the social, economic, technological, political, scientific and cultural aspects of the environment in which we grow, develop, live and work is increasing relentlessly. As a result we have been exposed to an unprecedented dynamics and uncertainty. Experimental evidence shows that complex situations cannot be adequately represented with deterministic models without loosing important, the...
Numerous real-world systems can be described by complex network models, and now the phenomenon of small-world is very common and widespread in many real networks. Over the last several years, instant messaging chat has been developing in a strikingly fast pace, which has the features different from those of the two classical small-world networks, WS and NW network models. To better describe the instant...
A critical issue for the design of a System-of-Systems (SoS) is the formal description of its architecture. One of the complicating factors for formally describing SoS architectures is that they evolve dynamically, during run-time, in unexpected ways. Today, none of the existing process calculi applied for formally describing the architecture of software-intensive single systems has the expressive...
Analyzing complex system with independent sub system is a difficult problem. Socio-technical phenomena are among these type of problems. In the past two decades, agent based modeling and simulation played a significant role in our understanding of complex emergent socio-technical phenomena. Several problems such as adoption of new technology, diffusion of contagious disease and social networks have...
A generalized Hough transform-based classification scheme for an object-of-interest in maritime-domain images is proposed in this paper. The scheme explores the use of Hough features and neural networks to classify large sets of image objects collected in the maritime domain environment. The object edge points are extracted and used to generate the generalized Hough coordinate tables. The Hough coordinates...
This paper presents a constraints modelling language named FORM-L (for FOrmal Requirements Modelling Language) and an associated modelling and analysis methodology that has been developed in the framework of the ITEA2 project MODRIO (MOdel DRIven system design and Operation). The objective is to support all the phases of the engineering lifecycle (prospective studies, development and operation) of...
For efficient operation, it is vital for supply chain management leaders and policy makers to recognize the nature of the system they deal with. Supply chains, are increasingly recognized as systems of systems, which are complex networks exhibiting self-organising properties. In large scale real-life networks, self-organisation manifests itself in distinctive structural patterns, such as Power Law...
The Simulation Interoperability Standards Organization (SISO) and the NATO Science and Technology Organization (STO) have since 2005 had activities to interface military command and control (C2) systems with simulation systems. This paper describes a new and highly promising way to combine NATO partners' C2 systems and simulation systems into a system of systems that is capable of supporting military...
This paper focuses on three categories of performance indicators for railway transportation: the excellence of operation, system safety and human factors. These are among the most critical indicators for delivering high quality services. This paper discusses the main issues, challenges and future directions of public transportation on these themes.
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