Jedadiah Ashford
2/23/2008
Guideline 7. Ensure user control of time-sensitive content changes.
This is important due to the severity of what could happen if we don’t follow this rule. The point here is to have no moving objects on the screen. If we have to have moving objects or text, then make sure it stops or the uses has a way to make it stop. People with cognitive issues have a hard time paying attention when things are moving. They also have a hard time following things are moving and may not be able to understand or click on them. Also, people with epilepsy can go into convulsions when they see things on the screen that flicker.
Priority 1 would be to have NO flashing or flickering on the webpage. This can cause sickness in people and emergencies. Anything that would flash more than 4-59 times a second can cause seizures in people that struggle with that disease. This doesn’t seem like it needs to be said, because it would be just as annoying to anyone of us. Also, there cannot be any flashing from dark to light or vice versa for the same reasons.
Allow users to control anything that is blinking or automatic, so they can choose to turn it on or off. If there is moving content, let the user turn it on or off. Using style sheets to script movement allows the user to easily change things.
Do not set automatic refresh pages. This can cause the same issues as the other blinking pages. Also do no set auto direct pages.
When these are implemented it can help us overcome some of the things that can ruin web browsing for the disabled.