Professional development is essential for certified Teachers of students with Visual Impairments (TVIs) to create high-quality tactile graphics in school settings. The teachers need more opportunities to learn knowledge and skills from other teacher colleagues on a community basis. Few studies were conducted to investigate what community-based…

Using touch screens presents a number of usability and accessibility challenges for blind people. Most touch screen-based user interfaces are optimized for visual interaction, and are therefore difficult or impossible to use without vision. This dissertation presents an approach to redesigning gesture-based user interfaces to enable blind people…