Evaluating a SysML-based Graphical Notation for Modeling Internet of Things System Architectures

Internet of Things (IoT) is bringing important challenges to the different activities of software engineering, including software architecture. Addressing the challenges surrounding IoT system development on the architectural level prevents them from reaching the implementation level. To support architecture specification of IoT systems, we have proposed an IoT Style for SysADL, a SysML-based language. In this paper, we apply the style to model the architecture of SmartPlace, a real IoT system. We also evaluate the qualitative aspects related to the concrete syntax of the language and the expressiveness of its abstract syntax. We conclude the SysADL+IoT Style is easy to use and is expressive enough to represent the IoT-specific needs.