Donald A. Norman

https://ja.wikipedia.org/wiki/%E3%83%89%E3%83%8A%E3%83%AB%E3%83%89%E3%83%BB%E3%83%8E%E3%83%BC%E3%83%9E%E3%83%B3 http://gyazo.com/1c313e6989f3aa933f14c211be13621f.png

https://gyazo.com/b7184531aebaaf76d939e940359b3c30