"You may have never heard of Rolf Molich. Yet, if you’ve done any usability testing, design evaluations, or heuristic inspections, then you’ve been affected by his pioneering work.

Since entering the field in 1983, Rolf has produced some of the most impressive and forward-thinking research on effective discount usability techniques. Two of Rolf’s more renowned contributions include the co-invention of the Heuristic Inspection process with Jakob Nielsen and the more recent CUE (Comparative Usability Evaluation) studies.

The Heuristic Inspection approach turned the usability world on its head when Rolf and Jakob suggested that you could get value by having experts review interface designs. However, in recent years, Rolf has revisited his thinking on this method and now is questioning its effectiveness for all projects."

Nice interview from UIE, a usability vendor. They also have a wonderful explanation of the CUE project, CUE: A Usability Bake-Off. You also might want to visit the CUE website for details.