Testing Techniques in IoT-based Systems

Internet of Things (IoT) systems are fast evolving nowadays, in which huge amounts of data are produced rapidly from heterogeneous sources. The nature of IoT-based systems implies many challenges, in terms of operation, security, quality control and data management. Thus, testing such systems is a key element to their success. In this paper, we present a comprehensive study for the main testing techniques and tools that have been considered for the IoT-based systems. Detailed comparison and analytical criticism are conducted, identifying the different testing types that have been applied for the main application domains. The research gaps are addressed, which highlight the future directions that can be adopted.