MM 440:
Web Presentation

Lecture//Accessible Design

Overview
The Question
Differences in Perception
Access Technologies

What to Consider
Background and Text
Images
Links
Frames
PDFs
Shockwave
Tables
User Interaction
Testing
Best Practices

Further Info

Many people with sight problems have some useful vision, and read web pages in exactly the same way as fully sighted people: with their eyes. However the needs of people with poor sight vary considerably, depending on how their eye condition affects their vision.

• Some people require large text, while others can read only smaller letters.

• Most need a highly contrasting colour scheme, and some have very specific needs, for example yellow text on a black background.

For example, the graphic above can be read by people with normal vision.

The same graphic as seen by people who are color blind.

To cater for everyone, websites should be flexible in design, enabling individual users to use their own browser to adjust the text and colour settings to suit their own particular needs and circumstances.

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