Abstract: A decision making support device including: an opinion acquiring module that acquires an expressed opinion from each of a plurality of participants with respect to each of the plurality of selective elements; and a target person determining module that determines, with respect to a given selective element, from which participant an opinion on the selective element is to be elicited when there are a plurality of unexpressed participants who have not yet expressed opinions on the selective element, wherein the target person determining module respectively calculates, when assuming that each of the unexpressed participants has expressed any of expected opinions, assumed group satisfaction that is determined based on contents of decision making and contents of expression of opinions of the plurality of participants, and determines from which participant an opinion on the selective element is to be elicited in consideration of the assumed group satisfaction.

Abstract: A decision making support device including: an opinion acquiring module that acquires an expressed opinion from each of a plurality of participants with respect to each of the plurality of selective elements; and a target person determining module that determines, with respect to a given selective element, from which participant an opinion on the selective element is to be elicited when there are a plurality of unexpressed participants who have not yet expressed opinions on the selective element, wherein the target person determining module respectively calculates, when assuming that each of the unexpressed participants has expressed any of expected opinions, assumed group satisfaction that is determined based on contents of decision making and contents of expression of opinions of the plurality of participants, and determines from which participant an opinion on the selective element is to be elicited in consideration of the assumed group satisfaction.

Abstract: A group status determining device determining a status of a group made up of a plurality of speakers engaged in a conversation includes: a storage that stores determination criteria, based on conversation situational data with respect to a plurality of group types; and a processor configured to operate as: an acquisition module that acquires conversation situational data, which is data regarding a series of groups of utterances made by a plurality of speakers and estimated to be on a same conversation theme; and a determination module that acquires a type of the group made up of the plurality of speakers, based on the conversation situational data and the determination criteria as a group status of the group made up of the plurality of speakers.