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Reference.org
Error-tolerant design
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<p>An error-tolerant design (or human-error-tolerant design) is one that does not unduly penalize user or <a href="/facts/Human_error/DjcKhpy6">human errors</a>. It is the human equivalent of <a href="/facts/Fault_tolerant/rasrYlJk">fault tolerant design</a> that allows equipment to continue functioning in the presence of hardware faults, such as a "limp-in" mode for an <a href="/facts/Automobile/I1IsH8IK">automobile</a> electronics unit that would be employed if something like the <a href="/facts/Oxygen_sensor/Yj0rxfdo">oxygen sensor</a> failed. </p>