This study followed the development of a multidisciplinary medical team meeting (MDTM) through changes that incorporated teleconferencing technology and a picture archive and communication system (PACS). Using both qualitative and quantitative data, MDTMs are shown make health services safer for patients. Analysis of screen displays, speech, and observations reveals the dynamics of MDTMs. System boundaries extend beyond the actual meeting. Stable work routines, timing and rhythms, are critical for success. Changes in organization structures, positive and negative, are demonstrated...