Communication Models ● Can lead of a confusion of the model between the behavior it portrays Mortensen:"Critics also charge that models are readily confused with reality.The problem typically begins with an initial exploration of some unknown territory....Then the model begins to function as a substitute for the event:in short,the map is taken literally.And what is worse,another form of ambiguity is substituted for the uncertainty the map was designed to minimize.What has happened is a sophisticated version of the general semanticist's admonition that "the map is not the territory. Spain is not pink because it appears that way on the map,and Minnesota is not up because it is located near the top of a United States map. "The proper antidote lies in acquiring skill in the art of map reading." ●Premature Closure The model designer may escape the risks of oversimplification and map reading and still fall prey to dangers inherent in abstraction.To press for closure is to strive for a sense of completion in a system. Kaplan: The danger is that the model limits our awareness of unexplored possibilities of conceptualization.We tinker with the model when we might be better occupied with the subject-matter itself.In many areas of human behavior,our knowledge is on the level of folk wisdom...incorporating it in a model does not automatically give such knowledge scientific status
Communication Models Can lead of a confusion of the model between the behavior it portrays Mortensen: “Critics also charge that models are readily confused with reality. The problem typically begins with an initial exploration of some unknown territory. . . .Then the model begins to function as a substitute for the event: in short, the map is taken literally. And what is worse, another form of ambiguity is substituted for the uncertainty the map was designed to minimize. What has happened is a sophisticated version of the general semanticist’s admonition that “the map is not the territory.” Spain is not pink because it appears that way on the map, and Minnesota is not up because it is located near the top of a United States map. “The proper antidote lies in acquiring skill in the art of map reading.” Premature Closure The model designer may escape the risks of oversimplification and map reading and still fall prey to dangers inherent in abstraction. To press for closure is to strive for a sense of completion in a system. Kaplan: The danger is that the model limits our awareness of unexplored possibilities of conceptualization. We tinker with the model when we might be better occupied with the subject-matter itself. In many areas of human behavior, our knowledge is on the level of folk wisdom ... incorporating it in a model does not automatically give such knowledge scientific status
Classical Communication Models ●Model of Lasswell's During World War ll,US Federal agencies used Lasswell's secret model to test a variety of propaganda techniques and to create some very powerful propaganda posters,films,and radio broadcasts.For example,it was discovered that“help win the war'”wasn't the most effective slogan to use for selling war bonds.It appealed to men,but not women. This led to the development of a more effective slogan:"Help win the war and bring the boys home.为
Classical Communication Models ●Model of Lasswell’s During World War II, US Federal agencies used Lasswell’s secret model to test a variety of propaganda techniques and to create some very powerful propaganda posters, films, and radio broadcasts. For example, it was discovered that “help win the war” wasn’t the most effective slogan to use for selling war bonds. It appealed to men, but not women. This led to the development of a more effective slogan: “Help win the war and bring the boys home
Classical Communication Models Model of Shannon Weaver's The Shannon-Weaver Mathematical Model,1949 Information Transmitte Receiver Channel Destination Source (Encoder Signal Received (Decoder) Signal Message Message Concepts: Entropy Redundancy Noise Noise Source Channel Capacity
Classical Communication Models ●Model of Shannon & Weaver’s