·Cognitive orientation has long bc:cn thought uf as a very important consideration to decision support systems (DSS). Situ~llion awareness ( S,-\ 1 and mental models. as t \\·o ke) concepts in ·cognitive psychology. are important for g ill-structurc:d problems and •· making effective clecisiuns. In many dynamic· · decision-making situatiuns. especially those \\·ith high uncertainty. complexity and high personal ··stake, much research has pnwcn that there is a ;_dose connection bet\n'cn S;\.

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... al mmlc:ls and the performance of decision tnal-;ing: good SA and mental models are \"Cl"\ lii-;ely to lead to ·good decisions and ultim<ttcl; good performance. This research de\-clops a c·,1nccptual information system framework for cognition-dri\en decision support system based ott co~niti\·c· orientation. which is expected to he abl~ w pm\ ide better decision support 111 ill-dci"incd decision situations.