“…For the purposes of this article, a DSS is defined as some computer or IT-based (Arnott & Pervan, 2008;Hayen, 2006;Keen & Morton, 1978;Power, 2001;Shim et al, 2002) information system (Arnott & Pervan, 2005;Arnott, 2006;Arnott & Pervan, 2008;Power, 2001) that fulfills the purposes of supporting one or more stages of the semi-structured or unstructured decision making process (Keen & Morton, 1978;Power, 2001;Sprague, 1980) rather than replacing decision maker judgment (Hayen, 2006). The primary aim of this system is to increase the effectiveness of this process rather than operational efficiency, though efficiency may exist as a secondary goal (Arnott & Pervan, 2005;Arnott, 2006;Arnott & Pervan, 2008;Hayen, 2006;Keen & Morton, 1978;Pearson & Shim, 1995).…”