Contents

In the book, Norman introduced the term affordance as it applied to design,[3]: 282  borrowing James J. Gibson's concept from ecological psychology.[1] In the revised edition of his book in 2013, he also introduced the concept of signifiers to clarify his definition of affordances.[4] Examples of affordances are doors that can be pushed or pulled. These are the possible interactions between an object and its user. Examples of corresponding signifiers are flat plates on doors meant to be pushed, small finger-size push-buttons, and long and rounded bars we intuitively use as handles. As Norman used the term, a door affords pushing or pulling, and the plate or button signals that it is meant to be pushed, while the bar or handle signals pulling.[3]: 282–3 [5]: 9  Norman discussed door handles at length.[6][5]: 10, 87–92 

Nope

https://en.wikipedia.org/wiki/The_Design_of_Everyday_Thingshttps://en.wikipedia.org/wiki/The_Design_of_Everyday_Things <--- what they meant to post

https://en.wikipedia.org/wiki/The_Design_of_Everyday_Thingshttps://en.wikipedia.org/wiki/The_Design_of_Everyday_Thingshttps://en.wikipedia.org/wiki/The_Design_of_Everyday_Thingshttps://en.wikipedia.org/wiki/The_Design_of_Everyday_Things <--- what they posted (bad)

maybe it's a client issue

Make them open the door then laugh at their misfortune.