Group decision making is the process of arriving at a judgment based upon the feedback of multiple individuals. Such decision making is a key component to the functioning of an organization, because organizational performance involves more than just individual action. Due to the importance of the group decision making process, decision making models can be used to establish a systematic means of developing effective group decision making. In general, four group decision making models can be identified each possessing distinct advantages and disadvantages. These four models are the rational, political, process, and garbage can models.
by Ryan K. Lahti