Decision making (decision from Latin decidere “to decide, determine,” literally “to cut off,” from de- “off” and caedere “to cut”) can be regarded as the mental processes (cognitive process) resulting in the selection of a course of action among several alternative scenarios. Every decision making process produces a final choice.[1] The output can be an action or an opinion of choice.[…]
Group decision making (also known as collaborative decision making) is a situation faced when individuals collectively make a choice from the alternatives before them. This decision is no longer attributable to any single individual who is a member of the group. This is because all the individuals and social group processes such as social influence contribute to the outcome. The decisions made by groups are often different from those made by individuals. Group polarization is one clear example: groups tend to make decisions that are more extreme than those of its individual members, in the direction of the individual inclinations.[1]