Remember to be clear about the difference between feature design experience and formal user interaction design expertise when answering this question. Companies may ask detailed follow-up questions if they require a candidate to have specialized skills in this area, and marketing basic design experience as expertise with user-interaction design is likely to make a poor impression on your interviewer.

I am not a user interaction design expert, and I have encouraged customers to budget for one when the user experience was a driving success factor for the products I was responsible for. However, I have taken several classes to improve my ability to make some of the same considerations an interaction designer would make. I like to ensure the solutions we develop are in line with the basic standards. I have experience developing mock-ups and wire-frames to gather user feedback before major features are developed. I have also facilitated basic usability testing with users in the past.