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Permanent URI for this collectionhttp://acikerisim.bau.edu.tr:4000/handle/123456789/160

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Author: search.filters.author.Erdal, ErdalSubject: search.filters.subject.Accessibility

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    Real time information assistant for visually impaired people and comparison of similar assistive applications
    (Bahçeşehir Üniversitesi Fen Bilimleri Enstitüsü, 2013-03) Erdal, Erdal; Salman, Yücel Batu
    The Internet has become a vital and indispensable means for daily needs. Access to the Internet is essential for various users; and visually disabled or impaired people should also be allowed to access the Internet. Visually impaired people have still trouble in accessing most web sites although web accessibility is institutionalized in several countries. It is difficult for visually impaired users to comprehend, navigate, understand and interact with the most current web sites. Software developers were also encouraged by Web Content Accessibility Guidelines (WCAG) of World Wide Web Consortium (WWWC). Specific needs of visually impaired people do not take enough interest while a number of theoretical models and applications have been developed to provice online facilities more universal and friendly. The purpose of this research is developing and testing new software which provides certain information for visually impaired people to assist them. Current voice recognition and optical character recognition technologies were implemented for the system’s infrastructure. All tasks were designed to be performed by the voice commands. The requirements were analyzed with the actual users in a controlled environment empirically. The application allows visually impaired user to access automatically categorized predefined information with the least possible selection from the user menus. The users participating in the experiment decided to revisit a web site or reuse an application based on its accessibility with the parameters of its usefulness and ease of use. The user’s performance, error, and satisfaction of the application were compared with an equivalent system. It was proven that our system worked well in encouraging the visually impaired users effectively. The behaviors of the users can be analyzed and the application can be improved by implementing innovative input ways in the further study.