i need help with a simple discussion

Amazon’sKindle (its electronic book, magazine, and newspaper reader) has beenfar more successful than its SONY competitor. However, the originalKindle had some physical problems—button placement and page-turn speedamong them. Correcting these problems resulted in the Kindle2, releasedin 2009 to glowing reviews. What observation research might have beenused in the redesign of the original Kindle? (Refer Chapter-7/ Module-6) Embedcourse material concepts, principles, and theories (which requiresupporting citations), along with two scholarly peer-reviewed referencesin support of your answer.