Proposta e Avaliação de uma Ferramenta Web para Vocalização de Gráficos de Barras

Abstract

Charts are visual representations of numerical data to transmitinformation efficiently, facilitating understanding. However, thecharts present on the internet often do not have textual descriptionsthat screen reader programs can process. Alternatively, it isincomplete for understanding when this information exists and,consequently, excludes people, such as the visually impaired. Thisarticle presents a web tool that vocalizes the textual description ofsimple and grouped bar charts, using validated description models,one for each chart type. The evaluation verified the proposal’s feasibilityto help people understand the information in the chartsthrough speech synthesis. Tests were applied with participantswithout visual impairment and with visual impairment. The analysisof the collected data shows a positive evaluation of the usersabout using the tool.