The user experience: The iceberg analogy of usability
In this article Dick Berry of User Experience Design, IBM Ease of Use Team writes "Developers sometimes ask which aspects of look and feel contribute most to the overall usability of an application or Web site. They are typically surprised when I answer that the "look and feel" aspects aren't the major contributors at all." (2000-10-22)
The link address is: http://www-106.ibm.com/developerworks/library/w-berry/?dwzone=web