If you continually get a door wrong, is it your fault? No. Absolutely not.
In fact, if you and other people continually get it wrong, it’s a good sign that it’s a really bad door. And we actually have a term for it: Norman door.
A Norman door is a poorly designed door that confuses or fails to give you an idea whether to push or pull. It was named after Don Norman, the author of The Design of Everyday Things which explored the phenomenon.
In the video, Don Norman raised two important principles in design—discoverability and feedback.
Discoverability refers to the human ability to discover what operations one can do. Feedback, on the other hand, refers to a signal that something has occurred after an interaction with an object.
Of course, these principles are not exclusive to doors and apply to a whole lot of everyday things. Together, these concepts form a standard around which designers base their work—human-centered design.
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