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Sensors 2018, 18(2), 562; https://doi.org/10.3390/s18020562

An Architecture Framework for Orchestrating Context-Aware IT Ecosystems: A Case Study for Quantitative Evaluation

1
Graduate School of Management of Technology, Sogang University, 35 Baekbeom-ro, Mapo-gu, Seoul 04107, Korea
2
Department of Computer Science and Engineering, Sogang University, 35 Baekbeom-ro, Mapo-gu, Seoul 04107, Korea
3
Department of Software Engineering, Dankook University, 152 Jukjeon-ro, Suji-gu, Yongin-si, Gyeonggi-do 16890, Korea
This paper is an expanded version of “ITE Arbitrator: A Reference Architecture Framework for Sustainable IT Ecosystems” published in Proceedings of the 2016 4th International Workshop on Software Engineering for Systems-of-Systems, Austin, TX, USA, 16 May 2016.
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Author to whom correspondence should be addressed.
Received: 6 November 2017 / Revised: 8 February 2018 / Accepted: 9 February 2018 / Published: 12 February 2018
(This article belongs to the Special Issue Advances in Sensors for Sustainable Smart Cities and Smart Buildings)
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Abstract

With the emergence of various forms of smart devices and new paradigms such as the Internet of Things (IoT) concept, the IT (Information Technology) service areas are expanding explosively compared to the provision of services by single systems. A new system operation concept that has emerged in accordance with such technical trends is the IT ecosystem. The IT ecosystem can be considered a special type of system of systems in which multiple systems with various degrees of autonomy achieve common goals while adapting to the given environment. The single systems that participate in the IT ecosystem adapt autonomously to the current situation based on collected data from sensors. Furthermore, to maintain the services supported by the whole IT ecosystem sustainably, the configuration of single systems that participate in the IT ecosystem also changes appropriately in accordance with the changed situation. In order to support the IT ecosystem, this paper proposes an architecture framework that supports dynamic configuration changes to achieve the goal of the whole IT ecosystem, while ensuring the autonomy of single systems through the collection of data from sensors so as to recognize the situational context of individual participating systems. For the feasibility evaluation of the proposed framework, a simulated example of an IT ecosystem for unmanned forest management was constructed, and the quantitative evaluation results are discussed in terms of the extent to which the proposed architecture framework can continuously provide sustainable services in response to diverse environmental context changes. View Full-Text
Keywords: Internet of Things; IT ecosystem; cyber physical systems; self-adaptive systems; orchestration; MAKE-K (Monitor-Analyze-Plan-Execute over a shared Knowledge) loop Internet of Things; IT ecosystem; cyber physical systems; self-adaptive systems; orchestration; MAKE-K (Monitor-Analyze-Plan-Execute over a shared Knowledge) loop
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Park, S.; Park, S.; Park, Y.B. An Architecture Framework for Orchestrating Context-Aware IT Ecosystems: A Case Study for Quantitative Evaluation. Sensors 2018, 18, 562.

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