Abstract
We examined what kind of rating index was usable for verification of usability of websites for blind persons. The search time had a strong correlation with the NASA-TLX WWL scores. This would suggest a possibility to evaluate the usability by the search time. On the other hand, in respect of the accessibility check tool, its verification result had no correlation with NASA-TLX WWL scores, so it could not be used as a tool for verification of usability. We must develop a new usability check tool for blind persons. If we place functions with high usage frequency and high level of importance at a top of the website where a user can easily recognize them, it not only gives us a high level of visibility but also is effective for a blind person using voice output web browser as well.
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Iizuka, J., Okamoto, A., Horiuchi, Y., Ichikawa, A. (2009). Considerations of Efficiency and Mental Stress of Search Tasks on Websites by Blind Persons. In: Stephanidis, C. (eds) Universal Access in Human-Computer Interaction. Applications and Services. UAHCI 2009. Lecture Notes in Computer Science, vol 5616. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-02713-0_73
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DOI: https://doi.org/10.1007/978-3-642-02713-0_73
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