Why Mobile Phones are Annoying (12 Apr 2004)
It pioneers the study of bystander usability. It's not enough to test usability with a design's direct user. We must also consider those who are getting a "user experience" whether they want it or not. This question will become more important as user interfaces leave the screen behind and become physical and/or mobile.
Article URL: http://www.useit.com/alertbox/20040412.html
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