Group decision making for TOPSIS

This study aims at improving TOPSIS (technique for order preference by similarity to ideal solution), a technique of multi-attribute decision making, through the nominal group technique, a process of group decision making, and other related tools. The decision quality will be secured after an integrated procedure is introduced, and the level of the group consensus can be measured and increased through some consensus indicators with referenced values. Finally, the proposed integrated procedure is implemented on a networked-based PC system as a decision aid in practice