Text in the user interface provides a fast and precise mode of communication for literate users. For illiterate users, text-free user interfaces have been shown to be useful, by combining images, sound and animation . However, it is not clear what the best approach will be for the vast number of semi-literate users who lie between these two ends of the spectrum, individuals who are classified as literate but may in fact have difficulty decoding a simple text passage. According to the 2001 census, the literacy rate in India is 65% , but by one estimate, 75-80% of the literate population may be only semi-literate . This project explores how semi-literate individuals utilize redundant text and audio information in the user interface. Our goal is to understand which mode is preferred and whether this changes as the user gains experience.
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3. Kothari, B., Pandey, A., and Chudgar, A. R. (2004). Reading Out of the "Idiot Box": Same-Language Subtitling on Television in India. Information Technologies and International Development, (2) 1:23-44.