کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
6860987 1438943 2018 32 صفحه PDF سفارش دهید دانلود کنید
عنوان انگلیسی مقاله ISI
Web accessibility: Filtering redundant and irrelevant information improves website usability for blind users
ترجمه فارسی عنوان
دسترسی به وب: فیلتر کردن اطلاعات بیش از حد و بی اهمیت، کاربردهای وب سایت را برای کاربران نابینا بهبود می بخشد
کلمات کلیدی
دسترسی، کورکورانه، ناوبری وب، فیلتر کردن اطلاعات، بار شناختی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر هوش مصنوعی
چکیده انگلیسی
Accessibility norms for the Web are based on the principle that everybody should have access to the same information. Applying these norms enables the oralization of all visual information by screen readers used by people with blindness. However, compliance with accessibility norms does not guarantee that users with blindness can reach their goals with a reasonable amount of time and effort. To improve website usability, it is necessary to take into account the specific needs of users. A previous study revealed that a major need for users with blindness is to quickly reach the information relevant to the task, by filtering redundant and irrelevant information. We conducted three experiments in which seventy-six participants with blindness performed tasks on websites which filtered or not irrelevant and redundant information. Cognitive load was assessed using the dual-task paradigm and the NASA-RTLX questionnaire. The results showed a substantial benefit for information filtering regarding participants' cognitive load, performance, and satisfaction. Thus, this study provides cogent arguments for improving usability of websites by information filtering for users with blindness.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Human-Computer Studies - Volume 111, March 2018, Pages 23-35
نویسندگان
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