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2:7 Warn of 'Time Outs'

Relative Importance:

Relative Importance rating of 4 out of 5

Strength of Evidence:

Strength of Evidence rating of 3 out of 5

Document Type: Guideline


Topic:

General User Experience


Guideline:

Let users know if a page is programmed to 'time out', and warn users before time expires so they can request additional time.


Comments:

Some pages are designed to 'time out' automatically (usually because of security reasons). Pages that require users to use them within a fixed amount of time can present particular challenges to users who read or make entries slowly.


Sources:

  • Koyani, S.J. (2001a, April). Cancer mortality maps and graphs Web site. National Cancer Institute, Communication Technologies Branch. Retrieved November 2005, from http://www3.cancer.gov/atlasplus/.  
  • United States Government, Rehabilitation Act of 1973 (amended in 1998), Section 508. Retrieved November 2005, from http://www.section508.gov/.

Good Example:

Give users appropriate warnings when a page will time out.

02_07_good_example2