A feature-based ontology for cyber-physical systems

Author(s):  
Bedir Tekinerdogan ◽  
Rakshit Mittal ◽  
Rima Al-Ali ◽  
Mauro Iacono ◽  
Eva Navarro ◽  
...  
Author(s):  
Eliab Z. Opiyo ◽  
Imre Horváth

Prognosis and planning for the future life cycles is critical for both customers and developers of complex systems such as cyber-physical systems (CPSs). There are often uncertainties regarding the eventual costs and performances of CPSs. Having in advance a clear sense of the expected costs and performance is vital in the early development phases for decisions on, e.g., which functional features the CPS should have, whether to proceed with the development process, or whether to own a CPS or product. We focus specifically on prognosis of functional performance and cost implications of CPSs. The problem is that the available forecasting approaches cannot be used straightaway to tradeoff between costs and benefits, or to predict the benefits of investment in the early phases of the processes of development of CPSs. As a first step in an attempt to deal with these challenges, we have developed a feature-based reference scheme for deriving aspects and criteria for forecasting functional performance and cost implications of CPSs. We illustrate the applicability of the proposed scheme in this paper. We used this scheme as the basis for deriving the aspects and criteria for forecasting functional performance and cost implications of a cyber-physical printing utility. The scheme provided a systematic way of acquiring and formulating the aspects and criteria, and of figuring out the features that a cyber-physical printing utility should encompass. Overall, it helps to reduce the chance of overlooking the aspects and criteria.


Author(s):  
Okolie S.O. ◽  
Kuyoro S.O. ◽  
Ohwo O. B

Cyber-Physical Systems (CPS) will revolutionize how humans relate with the physical world around us. Many grand challenges await the economically vital domains of transportation, health-care, manufacturing, agriculture, energy, defence, aerospace and buildings. Exploration of these potentialities around space and time would create applications which would affect societal and economic benefit. This paper looks into the concept of emerging Cyber-Physical system, applications and security issues in sustaining development in various economic sectors; outlining a set of strategic Research and Development opportunities that should be accosted, so as to allow upgraded CPS to attain their potential and provide a wide range of societal advantages in the future.


Author(s):  
Curtis G. Northcutt

The recent proliferation of embedded cyber components in modern physical systems [1] has generated a variety of new security risks which threaten not only cyberspace, but our physical environment as well. Whereas earlier security threats resided primarily in cyberspace, the increasing marriage of digital technology with mechanical systems in cyber-physical systems (CPS), suggests the need for more advanced generalized CPS security measures. To address this problem, in this paper we consider the first step toward an improved security model: detecting the security attack. Using logical truth tables, we have developed a generalized algorithm for intrusion detection in CPS for systems which can be defined over discrete set of valued states. Additionally, a robustness algorithm is given which determines the level of security of a discrete-valued CPS against varying combinations of multiple signal alterations. These algorithms, when coupled with encryption keys which disallow multiple signal alteration, provide for a generalized security methodology for both cyber-security and cyber-physical systems.


Author(s):  
A. V. Smirnov ◽  
T. V. Levashova

Introduction: Socio-cyber-physical systems are complex non-linear systems. Such systems display emergent properties. Involvement of humans, as a part of these systems, in the decision-making process contributes to overcoming the consequences of the emergent system behavior, since people can use their experience and intuition, not just the programmed rules and procedures.Purpose: Development of models for decision support in socio-cyber-physical systems.Results: A scheme of decision making in socio-cyber-physical systems, a conceptual framework of decision support in these systems, and stepwise decision support models have been developed. The decision-making scheme is that cybernetic components make their decisions first, and if they cannot do this, they ask humans for help. The stepwise models support the decisions made by components of socio-cyber-physical systems at the conventional stages of the decision-making process: situation awareness, problem identification, development of alternatives, choice of a preferred alternative, and decision implementation. The application of the developed models is illustrated through a scenario for planning the execution of a common task for robots.Practical relevance: The developed models enable you to design plans on solving tasks common for system components or on achievement of common goals, and to implement these plans. The models contribute to overcoming the consequences of the emergent behavior of socio-cyber-physical systems, and to the research on machine learning and mobile robot control.


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