“…055 are being used to assist management in solving a variety of semistructured problems including scheduling, stock trading, strategic planning, etc. In addition to classical individual user 055, other types of decision support systems have been implemented including executive information systems (EIS), group decision support systems (GDSS) (Chen and Liou, 1991;Howorka et al, 1991;Goul et al, 1990;Eck et al, 1989;Richards, 1989;]arvenpaa et al, 1988;Crowston and Malone, 1988;DeSanctis and Gallupe, 1987;Dennis et al, 1988;Malone et al, 1987;Huber, 1984), active/symbiotic decision support systems (ADSS) (Dalal and Kasper, 1991;Manheim et al, 1991;Castillo et al, 1991;Raghavan, 1991;Papazoglou et al, 1991;Raghavan, 1990;Mili and Rada, 1990;Manheim et al, 1990;Mastaglio, 1990;Manheim, 1989;Mili, 1989;Raghavan and Chand, 1989;Mili, 1988;Raghavan, 1984), and knowledge-based systems (KBS) (Goul et al, 1992). Anyone or all of these types of systems are present in today's organizations.…”