" The 'model-view-controller' paradigm introduces the controller object in between the view (the GUI class) and the model (the object) to communicate between the other two objects. The actual implementation of the controller object can vary quite a bit, but the idea of an object to 'transform' events to changes in data and execution of methods is the essence of this pattern . What does "event driven" mean? Was there ever an application which did not respond to user events. . ? Just because an application responds to events does not mean it is "event driven". Event driven means it spends much of its time waiting for an event and then takes action if and when an event occurs. Contrast this with some programs that do not respond to events at all, but simply do their job and terminate. Model Sailing Ship Kit For example, an operating system command to display the current time. It displays the time and is done; it does not wait for events. "

" Summary Chomsky and Herman summarize their theory thus: "A propaganda model has a certain initial plausibility on guided free-market assumptions that are not particularly controversial. In essence, the private media are major corporations selling a product (readers and audiences) to other businesses (advertisers). The national media typically target and serve elite opinion, groups that, on the one hand provide an optimal "profile" for advertising purposes, and, on the other, play a role in decision-making in the private and public spheres. The national media would be failing to meet their elite audience's needs if they did not present a tolerably realistic portrayal of the world. But their "societal purpose" also requires that the media's interpretation of the world reflect the interests and concerns of the sellers, the buyers, and the governmental and private institutions dominated by these groups (p. 303). " Empirical support Following the theoretical exposition of the propaganda model, Manufacturing Consent contains a large section where the authors seek to test their hypotheses. Antique Model Ship If the propaganda model is right and the filters do influence media content, a particular form of bias would be expected — one that systematically favors corporate interests. Noam Chomsky said, "the first way we tested the model in Manufacturing Consent was to submit it to what is really its harshest possible test: we let the opponents select their own ground. "