Multiple choice technology usability

Which one of the following is a measure of effectiveness of an application?

  1. Freedom from discomfort, and positive attitudes towards the use of the system

  2. The accuracy and completeness of goals achieved in relation to resources

  3. The accuracy and completeness with which users achieve specified goals

  4. All
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Effectiveness in ISO 9241-11 is specifically defined as the accuracy and completeness with which users achieve specified goals. Option A describes satisfaction/comfort. Option B describes efficiency (goals relative to resources like time). Only Option C matches the standard definition of effectiveness.

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