This paper reviewed the process and the achievements of a five-week-long virtual design studio project the authors carried out with three universities in Japan and the United States in the summer of 1996, in which there was no communication among team members other than network media. After analyzing the use of communication tools in different situations of design communication, and the level of communications achieved in this project, the authors concluded that the present network technology could provide sufficient levels of communication, if only participants could put forth some amount of extra effort for communication among team members.