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A Model-Checking-Based Framework For Analyzing Ambient Assisted Living Solutions

Fulltext:


Publication Type:

Journal article

Venue:

Sensors Special Issue IoT Sensors in E-Health


Abstract

Since modern ambient assisted living solutions integrate a multitude of assisted-living functionalities, out of which some are safety critical, it is desirable that these systems are analyzed at their design stage to detect possible errors. To achieve this, one needs suitable architectures that support the seamless design of the integrated assisted-living functions, as well as capabilities for the formal modeling and analysis of the architecture. In this paper, we attempt to address this need, by proposing a generic integrated ambient assisted living system architecture, consisting of sensors, data collection, local and cloud processing schemes, and an intelligent decision support system, which can be easily extended to suit specific architecture categories. Our solution is customizable, therefore, we show three instantiations of the generic model, as simple, intermediate, and complex configurations, respectively, and show how to analyze the first and third categories by model checking. Our approach starts by specifying the architecture, using an architecture description language, in our case, the Architecture Analysis and Design Language, which can also account for the probabilistic behavior of such systems, and captures the possibility of component failure. To enable formal analysis, we describe the semantics of the simple and complex architectures within the framework of timed automata. We show that the simple architecture is amenable to exhaustive model checking by employing the UPPAAL tool, whereas for the complex architecture we resort to statistical model checking for scalability reasons. In this case, we apply the statistical extension of UPPAAL, namely UPPAAL SMC. Our work paves the way for the development of formally assured future ambient assisted living solutions.

Bibtex

@article{Kunnappilly5708,
author = {Ashalatha Kunnappilly and Raluca Marinescu and Cristina Seceleanu},
title = {A Model-Checking-Based Framework For Analyzing Ambient Assisted Living Solutions},
volume = {19},
pages = {1--31},
month = {November},
year = {2019},
journal = {Sensors Special Issue IoT Sensors in E-Health},
url = {http://www.es.mdh.se/publications/5708-}
}