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
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All links should contain enough useful information about their
destination that they make sense on their own, without surrounding
text or graphics. Sighted people scan a screen of information
to quickly locate the parts that interest them. If you can't
see, you need another way to get a quick impression of the content
of a page. Commonly, the access software blind people use can
list all of the links on a page as one way of providing an overview
of the content. If a link consists only of the phrase 'click
here', its function and destination will not be obvious if it
is presented out of context.
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Links should not be presented directly next to each other,
as some access software will interpret a group of links as being
one single link. Instead, separate links with text (e.g. the
bar character " | ") or a graphic.
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If you have used graphics of text as links, provide text based
links as well to accommodate partially sighted users who are
using their browser settings to increase the font size. They
may not be able to read the graphic versions of the links since
these are unaffected by browser text settings.
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A text based site map will help visitors to get an impression
of the layout of the site quickly, and will make it easier to
navigate. Fully sighted people become lost on large sites too,
so all your visitors will benefit from this.
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