Abstract
The VIWA system has been developed to provide computer access for paralyzed people. The system detects the users’ breath pressure with an electrical board and translates it to the location coordinates in computer display screen. The user navigates mouse cursor by specifying the coordination of x and y. A graphical keyboard has been designed to provide text-entry ability with text-to-speech embedded feature. The system is platform-independent and can be run in every client side devices. A group of 10 people without disabilities tested the VIWA and quickly learned how to use it to spell out messages or interact with computer. Ten people with disabilities also tried the system. The measured mistakes and time are showing that the user is capable to control the mouse cursor with the accuracy of 99.8%. The average time of experiment shows that users can reach their speed of writing to 7.9 words/min after two attempts.
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