Evaluating the Usability of Interactive Digital Television Applications from a Collaborative Approach

Usability evaluation of an interactive software system is one of the most important stages inside the user-centered design. Usability evaluation methods (UEM) are quite diverse, there are variables like costs, time availability, human resources, etc., that are important to take into account. A large number of UEM can be used to evaluate interactive digital television (iTV) applications, but questions arise when deciding which method or combination of methods give more relevant information. In that sense, this paper discusses a methodological proposal to guide the usability evaluation of iTV applications, which consists of UEM that integrates collaborative processes in order to improve the stringency and consistency in the analysis of results.