Evaluation of Distributed Query-Based Monitoring over Data Distribution Service
Márton Búr, Dániel Varró · 2019
Safety assurance in critical IoT systems is increasingly important as those systems are becoming ubiquitous in various application areas, such as health care and transportation. Recently, novel runtime monitoring approaches started to adapt expressive rule- or query-based languages to capture safety properties, which are evaluated over runtime models. In this paper, we define two distributed query-based runtime monitoring strategies for IoT and cyber-physical systems built on top of a distributed runtime model deployed over the Data Distribution Service as standard communication middleware. We provide detailed scalability evaluation of our prototype implementation over a case study motivated by an open-source IoT demonstrator.