Diretrizes para projeto de Interfaces Gráficas do Usuário (IGU) com interação baseada em movimentos de cabeça

Abstract

New forms of interaction with Graphical User Interface (GUI) are increasingly used in different contexts. Technological evolution has allowed access to a variety of new devices / softwares that manipulate information in computional applications in an unconventional way. Among the various contexts, accessibility is highlighted by the potential use of these new interaction devices, with the aim to allow use of computers by people with disabilities. In Brazil 23.9% of the population has some type of disability, 7% of them motor disability, ranging from temporary, severe and permanent conditions. Promove accessibility to the use of Information and Communication Technologies (ICTs) has been a recurring subject of research in the area of Human-Computer Interaction (HCI). Through of Assistive Technology (AT), users with some abilities can use various types of interaction for data input, the most used are based on head/eyes movement tracking. However, this adaptation in the form of interaction occurs only in one of the sides of the User Interface (UI), not guaranteeing the best experience of using when combined with data output in the GUI, which are used in most everyday ICTs (computers, smartphones, tablets, digital entertainment). Therefore, the aim of this work is to provide guidelines for new GUI projects that use interaction based on head movement tracking. Through Systematic Review of Literature (SRL), state-of-the-art was defined in the research area and the need to develop the work with User-Centered Design (UCD) approach with cycles of experiments. The result of this work presents a comprehensive set of best practices for interaction designers in GUI design with technologies that allow this interaction based on head movement, promoving accessibility and a better user experience.