The educational applications developed for smartphones inaugurate a new form of interaction, since the experience of use happens with the touch of the fingers on the screen, allowing a greater control on the interface. However, because it is a recent equipment, it still needs studies that lead to the adequate development of these applications, especially when these involve the internalization of knowledge beyond the operational level. Therefore, they involve conducting usability tests and analyzing the results.
Previously, projects were carried out for certain segments of the population today, designers should think about the wide variety of existing consumers and their limitations. Thus, a design project must contain features that can encompass as many users as possible; what we call universal design. These types of concerns aim to improve the usability of the product and facilitate its use for the largest number of people, including left-handed people, elderly people, people with disabilities and/or people with special needs, always observing their daily lives.
In this context, this research aimed to study the most appropriate way to present educational content on smartphones, starting from the methodological analyzes of Leventhal and Barnes (
1998), regarding three applications: LetMeTalk, Aboard and Jade Autism. This work will not only focus on the ergonomic and usability analysis of platforms for alternative communication, but above all on the learning efficiency and skills of people with speech limitations, such as autistic individuals.