It also said in information-processing model proposed by Mcguire in 1989 that explained the six stages in information processing. Starting from message exposure, attention to message, comprehension of message content, acceptance of the premises contained in message arguments that lead to opinion change and ended to attitude change. This concept is similar with media monitoring activity to understand how the message exposure in mass media as the input and will lead to create output which is changing people’s attitude.
As we understand how the information is disseminated and processed by public, communication practitioner needs to be proactive in communicating messages with the public rather than to be reactive with uncertainty upcoming issue. Moreover, in open system public and the free access information by Internet today, we should monitor the media either offline and online. When we understand how information is processed in certain information systems, we can communicate with the public effectively and efficiently.