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Aside from the fact that many visually impaired computer users cannot
see the screen properly, there is two important facts which needs to
be understood and kept in mind when giving instructions to them. They
are:
- They cannot have birds-eye view of the screen.
- It is often very difficult for them to recognize dynamic changes
taking place on the screen.
Assistive technologies help to overcome these facts in great extent,
however, they do not eliminate these facts. Instructors need to help
the users to do the following:
- Get an idea of what is on the screen.
- Understand the important pieces of information on the screen.
- Find out the shortest path to get to the information users need to
access.
- Find out the shortest path to get to the places where users need
to enter important information.
- Understand the behavior of application programs so that they would
know what changes on the screen to look out for.
- Find a mean to recognize important changes on the screen.
The ultimate goal is that users can do all the above by themselves.
This, however, is not easy for many users, especially for beginners.
In order to help them achieve these goals, instructors need to
understand application programs well enough to provide those
information to users as well as understand the specific needs of the
user.
Next: 5 Braille Transcribing System
Up: TEACHING THE WINDOWS TO
Previous: 3 Assistive Functionalities Provided
Masafumi NAKANE <max@imgsrc.co.jp>