I teach an introductory course on human-centered design here at Penn State, and the students in my class recently completed a redesign of the product rating system on Amazon.com. I gave them an abstract design brief, which meant that they were responsible for scoping the problem and generating a solution. This is a great cohort of students, and they produced some fantastic projects!
I want to showcase one of those projects here, with permission from the team. It is clever and straightforward, and they told a compelling story when they presented it in class. Check out their slide deck here: Reskinning amazon.com product ratings.