Applying B and ProB to a Real-world Data Validation Project

Data validation is a constraint satisfaction problem that can be modelled rigorously by formal methods like B. This paper presents our experiences on validating a real-world section topology of tram lines using the B language and ProB tool. Based on the section topology, validation rules are designed and implemented by using the ASSERTIONS Clause of B. The Epsilon Generation Language Script is used to build a data conversion schema under automatically deriving the topology data into the B model. Furthermore, the ProB is used to validate whether the data satisfy the rules. In this way, the validated topology improves the functional correctness of the tram control system.