Dealing with group decision-making environments that have a high amount of alternatives using card-sorting techniques

Due to the appearance of Web 2.0 technologies and smartphones, the amount of information available to carry out group decision-making processes has increased dramatically. Therefore, there is a need for group decision-making methods that are capable of dealing with environments that handle a high number of alternatives. In this paper, a novel group decision-making method that can deal with these kinds of environments has been developed. Thanks to card-sorting techniques, it is possible to reduce the number of alternatives that the experts have to deal with using their own knowledge. Thanks to this, experts do not have to rely on information from any external source as it is done in other similar methods