Interpersonal communication is the basis for almost any type of cooperation
. Changing patterns of communication may have an impact on the quality of c
ooperative work. In this paper, user experiences are described in a long-te
rm groupware project. Communication changes, both planned and unplanned, we
re examined as a result of the system introduction. Reduced face-to-face co
mmunication, task-related and task-unrelated, were found, as well as a chan
ging dissemination of information. Certain losses in interpersonal communic
ation were compensated for by user advocacy and design team-user workshops.
It is proposed that with groupware introduction, organizations should cons
ider support for both planned and informal means as compensation for reduce
d communication.