Bad Human Factors Designs: The Bidet

In this student project, Michael Dixon explains why the bidet is poorly designed. Dixon explains that it lacks functionality because there arent any typographical explanations on the handle and valves. He then explains how he plans to improve its functionality.

He then uses post-it notes to show which handle controls the hot and cold water functions, including which way to turn the middle knob. What everyday appliance could you improve and how?