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Providing the user has an appropriate viewer for Flash, eg. the Adobe Flash Player, it is an excellent way to add interesting content to sites. However, Flash requires work to make it accessible to users with disabilities,
but offers you the following options (from WebAIM):
- Hearing disabilities
- Provide synchronized captions for any
audio that conveys content
- Photo epilepsy
- Remove strobing content that flashes between
2 and 55 times per second
- Motor disabilities
- Ensure the Flash content is keyboard accessible
- Do not require
fine motor skills
- Cognitive disabilities
- Give users control over time sensitive
content
- Provide easy to use controls and navigation schemes
- Be consistent
- Use the clearest, simplest language appropriate
to the content
- Low vision
- Provide plenty of contrast
- Allow the Flash content to scale
to a larger size. Because Flash is based on vector objects
(mathematically defined lines and shapes) rather than raster
(pixels of differing
colors) technology, most Flash content can be easily scaled
to any size without distortion. Individuals with low vision may
be able to interact with Flash content in ways not possible
with
HTML content
- Blindness
- Ensure screen reader accessibility or provide an
accessible alternative
- Ensure keyboard accessibility
- Because of the audio capabilities of Flash, it can present
content through audio, thus removing the need for a screen
reader to extract audio content from the Flash movie. However,
you must warn users of screen readers that a self voicing
item will play, and give them the option of stopping the
audio, but do not interfere with screen
reader audio or keyboard commands
- Provide textual equivalents
for all non-text elements
that convey
content
or provide
a function
Refer to:
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