The words "user" and "experience" have been used in the same sentence for a while. Both the topic and the role have been evolving for a while.  

![enter image description here][1]
Here's a paper that I delivered at an early "before we called it the Web" conference on interactive systems in 1984 titled 
"**Interactive Architecture and the role of the Designer**"
  http://www.jcvtcs.com/papers-tcs/interactive-architecture.html

I ocr'ed that old paper and converted it into an html page, with a "punchline" that I replaced old out-of-date terms with their more modern equivalents: http://www.jcvtcs.com/services/architecture-metaphors.html. 


  [1]: https://i.sstatic.net/ivvQs.jpg