i need help with a simple discussion

Amazon’s
Kindle (its electronic book, magazine, and newspaper reader) has been
far more successful than its SONY competitor. However, the original
Kindle had some physical problems—button placement and page-turn speed
among them. Correcting these problems resulted in the Kindle2, released
in 2009 to glowing reviews. What observation research might have been
used in the redesign of the original Kindle? (Refer Chapter-7/ Module-6)
Embed
course material concepts, principles, and theories (which require
supporting citations), along with two scholarly peer-reviewed references
in support of your answer.