A formal approach to the usability engineering
José Creissac Campos · 2003
The quality of an interactive system can be measured in terms of its usability. Empirical approaches to usability evaluation attempt to assess the system under real usage conditions. This type of approach can be very expensive. Analytical approaches have been proposed as a means of reasoning about usability issues from early in development. These approaches use models to focus the analysis in specific usuability issues. In this context, the aplication of (mathematically) formal notations and tools has been proposed.This paper presents a formal approach to the analysis of interactive systems. The analysis can be carried out taking into account all possible behaviours of the device, or it can be guided by the tasks the device is supposed to support.