What Kind of Research Method is this?
You can base it on the data collected by other people already. There are many facts about user behaviors available in various research papers. This list has a seemingly good compilation of conferences.

So you base your design on facts and observations and user preferences that someone has published. Then your contribution can be using those principles to create a user interface for a domain, device, or a situation that no one else has explored yet.

I am not a usability person, but since the question was on research method, I thought I would provide my opinion.