Viewed: 94 - Published at: 8 years ago

When people fail to follow these bizarre, secret rules, and the machine does the wrong thing, its operators are blamed for not understanding the machine, for not following its rigid specifications. With everyday objects, the result is frustration. With complex devices and commercial and industrial processes, the resulting difficulties can lead to accidents, injuries, and even deaths.

( Donald A. Norman )
[ The Design of Everyday Things ]
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