Human knowledge is one of the scarce resources and strategic assets of organization. Turnover in organization has long been one of the major problems that most organizations are facing. Commitment is found to be a critical factor to sustain organizations' competitive advantages. The organizational commitment is derived from group commitment within a particular organization. This paper introduces long-term variable (group commitment) of using GDSS and proposes a long-term effect of GDSS on group commitment. Socialization theory and team theory are used to explain the theoretical background underlying the model.