The information system plays a central role in many con temporary organizational activities. How well the information system is integrated into organizational processes, though, is a key factor influencing the degree of effectiveness present in decision making. The underlying, and many times unrecog nized, reality influencing the effectiveness of an information system is the recognition of the different domains or sectors— EDP, MIS and DSS. This study examines the perceptions of information system domains by practitioners and educators.
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