Support for reasoning about interactive systems through HCI designers' representations

In this paper we present and discuss the integration of tools for the development and analysis of human-computer interaction models with formal verification techniques. We explain the method that we have developed and the tools that we have integrated for this purpose, and discuss how the resulting environment is more effective for designers of interactive applications than using current formal verification techniques alone. The main result is that designers can take advantage of the functionality of model-checking tools while still working with representations of the relevant models that they are familiar with in their practice. Thus, we show how tools can support such an approach and what design choices have been made to improve the usability of such an environment, allowing even people with little background in formal methods to use it.