Culture affects usability. For example, color may have different meanings in countries. A website with lots of green would be a problem in France since the French associate green with criminality. On the other hand, a website with lots of green would invoke positive feelings in Egypt and Middle Eastern countries. The following article provides good information on culture and usability (termed culturability):
Culturability: The Merging of Culture and Usability
By: W. Barber and A. Badre
https://www.usj.edu.lb/moodle/stephane.bazan/obs_interculturelle/Barber%20and%20Badre.pdf
Culturability reminds me of the term for American Indian in Guyana - Amerindian. Amerindian combines or merges American and Indian.
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