Michael Muller works in the Collaborative User Experience group of IBM Research, and the IBM Center for Social Software. His work focuses on metrics and analytics for enterprise social software applications, and emergent social phenomena in social software. Earlier IBM work involved activity-centric computing and communities of practice.

Michael is an internationally recognized expert in participatory design and participatory analysis. His work in this area includes the development of methods (CARD, PICTIVE, participatory heuristic evaluation) and theory (ethnocritical heuristics), as well as the creation of taxonomies and encyclopedic descriptions of participatory methodology in handbook chapters. Michael contributed expertise on participatory and qualitative analysis to a recent book from the National Academy of Science, as part of a three-year membership in a human-systems integration committee.

Michael is active in IBM's inventor community. He is head of the Invention Development Team for the Collaborative User Experience group, and was recently recognized as an IBM Master Inventor.