A task for our introductory lesson in HCI was to find two bad interfaces (virtual or physical):
The above image is Iowa State University’s ‘Join’ page. I wanted to show that usability issues are tied with accessibility issues. To demonstrate this, I used the WAVE web accessibility tool. The tool showed that the page had several issues like not having certain labels that are used by people with visual disabilities (text-to-speech tools).
I have a desk lamp similar to this and my issue is with the knob up top. Instead of a similar on/off button, I must turn the knob to the correct direction to turn the light on. This was very annoying early on because I would always turn it to the wrong direction. The device required a user to rely on the working memory (it is always better to have users rely on recognition rather recall). A simple and better design would have been a button on the bottom that when pressed turns on and when pressed again turns off.