Something that drives me crazy is when I see an “automatic” door, but it still has a handle that makes me pull it before it opens. There’s one like this in D2, and it confuses me every time. I never know if I should wait for it to open, or if I need to pull it myself. Sometimes I pull too early or too late, and it feels frustrating. This could be improved by making the design consistent: if the door is automatic, it shouldn’t need a pull at all, or at least the handle should be removed to avoid sending mixed signals.
Using Norman’s principles, this is a problem of bad signifiers. The handle suggests pulling, but the automation suggests not touching it. In interactive media, I can avoid this by making sure buttons, icons, or gestures clearly show what the user should do, without mixed signals. I could also apply discoverability and feedback , like for example, if a button is loading, it should change color or show a spinner so the user knows the system is working. That way, people don’t waste time guessing what to do, just like they shouldn’t have to with a simple door.
This is what I feel and believe would help .