Functional perspective, a prescriptive approach that describes and predicts task-group performance when four
communication functions are fulfilled.
This theory, focuses on group communication and how group interactions effects on the views and processes as a medium to be such an instrument in which making decisions as well. In group decision making has the term functional perspective means to become practically in capacity to view things in their true relations or relative importance as used to have a positive effect also on making final decisions.
Example, the goal setting is the one of the requisite functions of this theory. Thus, in television especially news on TV has the goal to give the audience the quality of news they want to hear about. Since the TV works as a group there is always decision making happen when to identify, making the news to be aired. The instrument used to spread out the newa to the public is the television.