This study attempts to present a model of member satisfaction with group decision process. Three variables: ease of use (EOU) of the communication medium; participation; and decision confidence (DC), were explored as determinants of member satisfaction. The study offers an explanation of the effects of these variables on group process satisfaction in two communication media: a nearly synchronous text-based computermediated communication (CMC) and traditional face-to-face communication (FTF). Results indicate that these variables were good predictors of member satisfaction. Regression and correlation analyses help to validate the model for the two communication media using the ordering of the predictor variables and the strength of the relationship. Results confirm that ease of use showed the most contribution to satisfaction and that ease of use is lower in CMC than in FTF. The findings also confirm the effect of communication medium on member satisfaction.