Formal Validation of Java/Swing User Interfaces with the Event B Method

User Interface (UI) systems are increasingly complex and nowadays assist critical activities. The development of UIs needs empowered validation methodologies in order to ensure the correctness of the developed UI-based applications. This paper investigates the applicability of reverse engineering and formal approaches to the validation of UIs correctness. The approach is the following. An user interface’s abstract model is derived starting from its Java/Swing source code. This formal execution model is then used to prove that the developed interactive system is in accordance with usability requirements expressed in CTT tasks models.