Domain Experts / Subject Matter Experts / Industry Experts have invaluable knowledge that you can (and should) apply during your UX process. Domain expert involvement is not an alternative to UX research, and a domain expert is certainly neither a “user expert” nor a designer.
Interviews
Domain Expert Interview — UX Knowledge Base Sketches
Knowledge
User Interview: How To Ask Good Questions — UX Knowledge Base Sketches
While interviewing users may seem to be an easy task — “You are just asking some questions, and the interviewee gives some answers, and that’s it, right?” Well, not really.
Interviews
User Interview: How To Ask Good Questions — UX Knowledge Base Sketches