This article is concerned with the decision process and examines the relationships among information attributes, strategic alternatives’ evaluation and group decision support systems (GDSS) in the context of database management. The evaluation of strategic alternatives with multiple criteria is very useful for the management of enterprises and business organisations. The whole evaluation and comparison process includes two phases: the establishment and selection of basic strategic evaluation criteria and the appreciation of the ranking of the strategic alternatives. A GDSS has been developed and used to support the evaluation of strategic alternatives. The experimental results show that the proposed GDSS produces better results in evaluating strategic alternatives with multicriteria methods. The major findings are discussed and directions for future research are suggested according to the proposed model.