
300 ◾ Cyber-Physical Systems
© 2010 Taylor & Francis Group, LLC
Moreover, after conducting an online questionnaire to 51 people, only half of specialists use a
computer program while the other half draw by hand only. More shockingly, the specialists who
use a program mostly relied on simple drawing kits like Microsoft Word because advanced draw-
ing tools like Adobe Photoshop are hard to learn and operate, even though it is effective when the
specialist knows the commands. In order to help the specialist produce complex and advanced
pictures, the software called tactile graphics assistant (TGA) is built to translate graphical images
because t ...