Measuring usability: preference vs. performance
Communications of the ACM
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Emotional design is increasingly being pointed as a crucial factor to be considered during the development of a product and as the one responsible for success. This study aimed to evaluate and characterize the emotion of the visual impaired during the interaction with the main features of Facebook. For this purpose, a survey based on an adaptation of the Positive and Negative Affect Schedule (PANAS) was conducted. Results indicate that there is difference in the frequency of emotions experienced by users with visual impairments compared with users without visual impairment.