Norman door is a door with a design that makes it difficult to determine
the correct way to open the door.
不知道怎么开门才是正确的,有这样设计的门就称为“诺曼门”。
A so-called “Norman Door” has design elements that give you the wrong
usability signals to the point that special signage is needed to clarify how
they work. Without signs, a user is left guessing about whether to push or pull,
creating needless frustration.