FMSG: a framework for modeling and verification of a smart grid

System requirements can occasionally be ill-defined and difficult to define. In this case, graphic representation of the system created using semi-formal modelling is advantageous. A smart power grid, for example, includes numerous important needs and function points. We can portray the system functionalities graphically to better grasp the requirements before moving forward with the formal definition. Though, graphic models like Unified Modeling Language (UML) have ambiguity issues as they work on predefined rules. On the other hand, the formal technique uses the correct-by-construction method to guarantee the system's dependability. The formal technique is based on well-practiced mathematical notation. In this article, a smart grid (SG) system based on blockchain (BC) is formally modelled and verified. The system requirements are validated using the formal modelling technique Event-B. To illustrate the system, we first suggest various graphical notations. After that, the notations are translated into a JSON (JavaScript Object Notation) format. Java executable codes are generated in order to validate the JSON schemas. The graphical model is then translated into Event-B specifications and validated using RODIN, a standard tool support.