Working closely with many academics, I have published user studies of various systems I have built, many of which can be seen here.

This overview, from the Nielsen Norman User Experience website sums up many of the techniques I have encountered and embraced over the last 10 years, and provides a good overview or how they are inter-connect.

For anyone new to UX and UI design or conducting user studies this provides a nice overview of the appropriate techniques which you can see mapped in the following diagram.

User Research Methods