What is Accessibility?
- Making Your Web Site Accessible
Checklist for Accessibility
Must Have Items - Should
Have Items - Try To Have Items
Items for More Experienced Webmasters
Apply These Items if Your Use These Special Features
| Applets & Scripts | |
| Blinking, Moving, or Flickering Content | |
| Color | |
| CSS | |
| Forms | |
| Frames | |
| Graphs |
Some users have difficulty reading or responding to information if it is displayed
briefly or requires quick response time. Some Web pages are designed to time-out
for security reasons. Some response delays may also be caused by the use of
assistive technology used to read the page. The user should be notified that
the process is about to time out and be given the opportunity to indicate if
additional time is required.
The following techniques may be used to meet Checkpoint
7 from the list of "Should Have" Checkpoints.
The following techniques may be used to meet Checkpoint
8 from the list of "Should Have" Checkpoints.
If the time-out occurs on the server, the server should send a message to the
user indicating the process will time out. Otherwise, use JavaScript to generate
a pop-up or dialog to inform the user of the time-out and allow them to request
additional time.
If you create periodically auto-refreshing pages it can be very difficult for
assistive technologies to work properly. Once a page is refreshed, the screen
reader begins again from the top of the page. This can create major difficulties
for many visitors so do not create pages which refresh automatically.
If you need to create pages which redirect visitors to a new URL, do not use
markup to redirect pages automatically. Instead, configure the server to perform
redirects or put links on the Web page which the visitor can activate to be
taken to the new URL. You can see an example of the second technique on this
redirecting page used at the Collierville High School Web Site (http://www.scs.k12.tn.us/scs/high/collierville/info/summer_ap.htm).
View a page which has a timed response. Ensure the user is notified when the process is going to time out and is given the ability to indicate more time is needed. If any information times out, the user is notified and can request more time.
What is Accessibility?
- Making Your Web Site Accessible
Checklist for Accessibility
Must Have Items - Should
Have Items - Try To Have Items
Items for More Experienced Webmasters
Apply These Items if Your Use These Special Features