A Human-centric and Environment-aware Testing Framework for Providing Safe and Reliable Cyber-Physical System Services

  • In-Young Ko School of Computing, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea
  • KyeongDeok Baek School of Computing, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea
  • Jung-Hyun Kwon School of Computing, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea
  • Hernan Lira School of Computing, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea
  • HyeongCheol Moon School of Computing, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea
Keywords: Service-oriented systems, Cyber-physical systems, Environmentaware testing, Service effects, Human cognitive resources

Abstract

The functions, capabilities, and effects produced by the application services of cyber physical systems (CPS) are usually consumed by users performing their daily activities in a variety of environmental conditions. Thus, it is critical to ensure that those systems neither interfere with human activities nor harm the users involved. In this paper, we propose a framework for testing and verifying the safety and reliability of CPS services from the perspectives of CPS environments and users. The framework provides an environmentaware testing method by which the efficiency of testing CPS services can be improved by prioritizing CPS environments and by applying machinelearning techniques. The framework also includes a metric by which we can automate the test of the most effective services that deliver effects from physical devices to users. Additionally, the framework provides a computational model that assesses mental workloads to test whether a CPS service can cause cognitive depletion or contention problems for users. We conducted a series of experiments to show the effectiveness of the proposed approaches for ensuring the safety and reliability of CPS application services during the development and operation phases.

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Author Biographies

In-Young Ko, School of Computing, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea

In-Young Ko is an associate professor in the School of Computing at the Korea Advanced Institute of Science and Technology (KAIST) in Daejeon, Korea. He received his Ph.D. in computer science from the University of Southern California (USC) in 2003. Prof. Ko’s research interests include services computing, web engineering, and software engineering.

KyeongDeok Baek, School of Computing, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea

KyeongDeok Baek is currently a Ph.D. candidate in the School of Computing at the Korea Advanced Institute of Science and Technology (KAIST) in Daejeon, Korea. He also got his bachelor’s degree in the School of Computing, KAIST, Korea. His research interests is on solving service-oriented computing problems in Internet of Things (IoT) domain, by using reinforcement learning techniques.

Jung-Hyun Kwon, School of Computing, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea

Jung-Hyun Kwon received his Ph.D. degree in the School of Computing at the Korea Advanced Institute of Science and Technology (KAIST) in Daejeon, Korea, in 2019. He is currently a researcher in Korea Telecom, South Korea. His research interests include software engineering, AI-based enterprise applications, and network management systems.

Hernan Lira, School of Computing, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea

Hernan Lira received his Master’s degree in the School of Computing at the Korea Advanced Institute of Science and Technology (KAIST) in Daejeon, Korea. He got his bachelor’s degree at University of Chile. His research interests include cognitive engineering and AI systems.

HyeongCheol Moon, School of Computing, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea

HyeongCheol Moon received his Master’s degree in the School of Computing at the Korea Advanced Institute of Science and Technology (KAIST) in Daejeon, Korea. He also got his bachelor’s degree in the School of Computing, KAIST, Korea. His research interests is on Vehicle-to-Everything, Internet of Things, and services computing.

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Published
2020-06-03
Section
SPECIAL ISSUE: Advanced Practices in Web Engineering 2020