scholarly journals Handling Multifacets of Trust Management in Cyber Physical Systems

Trust should be learnt from history and context sensitive. It should not be absolute in nature. Due to the conglomeration of various technologies in a secure cyber physical system it is quite a challenge to handle trust issues in a cyber physical system. Trust management in cyber physical system is needed due to increase in the degree of autonomy, decentralized policies ,dynamic environment, decision-making based on social rules,customs,laws,values, and ethics. This chapter brings light into the existing strategies already applied by few organizations, their inherent benefits and consequent shortcomings too. There are many factors contributing towards the establishment, expression, evaluation ,maintenance of trustworthiness. In this chapter we advocate a novel framework for trust management which stands up to the research directions of how to build a unified framework for trust management, how to modify the way we compute trust, how to decide the right granularity for a trust model

Author(s):  
Bhabendu Kumar Mohanta ◽  
Utkalika Satapathy ◽  
Meenu Rani Dey ◽  
Soumyashree S. Panda ◽  
Debasish Jena

2019 ◽  
Vol 33 (4) ◽  
pp. 407-428 ◽  
Author(s):  
Tony Garry ◽  
Tracy Harwood

Purpose This paper aims to provide empirically derived insights into trust and its predictors within a cyber-physical system context of a household service. Design/methodology/approach The methodology comprises an innovative mixed methods design encompassing a videographic animated film portraying a potential “slice of life” household service-system scenario that was subsequently incorporated into a quantitative survey. A total of 400 responses were then used to examine trust dimensions and their hypothesised predictors. Findings Findings suggest trust is two-dimensional, with “online networking competency”, “perceptions of risk”, “propensity to trust technology in general” and “concerns about security” being significant predictors. Surprisingly, “concerns about privacy” do not have a significant effect. Originality/value The contribution of this research is twofold. Firstly, from a theoretical perspective, the paper offers empirical insights into trust and its predictors within a cyber-physical system context of a household service. Secondly, and from a pragmatic perspective, the model derived from this study may aid practitioners in developing trust strategies and trust management systems within such contexts.


2016 ◽  
Vol 6 (7) ◽  
pp. 1572-1575 ◽  
Author(s):  
J. Sathya Priya ◽  
S. P. Rajagopalan ◽  
M. Ramakrishnan

Author(s):  
Martin Zimmermann ◽  
Franz Wotawa ◽  
Ingo Pill

Intelligence in its decisions is a trait that we have grown to expect from a cyber-physical system. In particular that it makes the right choices at runtime, i.e., those that allow it fulfill its tasks, even in case of faults or unexpected interactions with its environment. Analyzing how to continuously achieve the currently desired (and possibly continuously changing) goals and adapting its behavior to reach these goals is undoubtedly a serious challenge. This becomes even more challenging if the atomic actions a system can implement become unreliable due to faulty components or some exogenous event out of its control. In this paper, we propose a solution for the presented challenge. In particular, we show how to adopt a light-weight diagnosis concept to cope with such situations. The approach is based on rules coupled with means for rule selection that are based on previous information regarding the success or failure of rule executions. We furthermore present a Java-based framework of the light-weight diagnosis concept, and discuss the results obtained from an experimental evaluation considering several application scenarios. At the end, we present a qualitative comparison with other related approaches that should help the reader decide which approach works best for them.


Author(s):  
Vo Que Son ◽  
Do Tan A

Sensing, distributed computation and wireless communication are the essential building components of a Cyber-Physical System (CPS). Having many advantages such as mobility, low power, multi-hop routing, low latency, self-administration, utonomous data acquisition, and fault tolerance, Wireless Sensor Networks (WSNs) have gone beyond the scope of monitoring the environment and can be a way to support CPS. This paper presents the design, deployment, and empirical study of an eHealth system, which can remotely monitor vital signs from patients such as body temperature, blood pressure, SPO2, and heart rate. The primary contribution of this paper is the measurements of the proposed eHealth device that assesses the feasibility of WSNs for patient monitoring in hospitals in two aspects of communication and clinical sensing. Moreover, both simulation and experiment are used to investigate the performance of the design in many aspects such as networking reliability, sensing reliability, or end-to-end delay. The results show that the network achieved high reliability - nearly 97% while the sensing reliability of the vital signs can be obtained at approximately 98%. This indicates the feasibility and promise of using WSNs for continuous patient monitoring and clinical worsening detection in general hospital units.


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