" We discuss some of those here. View instability vs . model stability If constructed correctly, models can enjoy a fair degree of stability (owing to the stability of the domain model), whereas user interface code usually undergoes frequent and sometimes dramatic change (typically because of usability problems, the need to support growing classes of users, or simply the need to keep the application looking "fresh"). Separating the view from the model makes the model more robust, because the developer is less likely to "break" the model while reworking the view. Attempting to stitch these two worlds together in a hand coded method without architecture is very common, and results in the model object being polluted with knowledge of the interface, and vice-versa. This makes the code very inflexible and difficult to maintain. For this reason (among others), many programming shops develop the user interface design early in the process of design, and freeze the interface early. Ls Model Thumbnail The unfortunate side effect of this is that the domain of the problem often isn't clearly understood by the programmers until late in the implementation process. Thus, just at the time that the developers are finally competent to create a good interface, they are kept from changing it. "

" They also looked at what they perceived as naturally-occurring "historical control groups" where two events, similar in their relevant properties but differing in the expected media attitude towards them, are contrasted using objective measures such as coverage of key events (measured in column inches) or editorials favoring a particular issue (measured in number). Finally, the authors examine what points of view they believe are expressed in the media. In one case, the authors examined over fifty of Stephen Kinzer's articles about Nicaragua in the New York Times. They criticize Kinzer for failing to quote a single person in Nicaragua who is pro-Sandinista and contrast this with polls that Chomsky and Herman cite as reporting a 9% support for all the opposition parties taken together. Based on this example and select others, the authors conclude that such a persistent bias can only be explained by a model like the one they advocate. Applications Since the publication of Manufacturing Consent, both Herman and Chomsky have adopted the theory and have given it a prominent role in their writings, lectures, and theoretical frameworks. Chomsky, in particular, has made extensive use of its explanative power to lend support to his own interpretations of mainstream media attitudes towards a wide array of events, including the following: Gulf War (1990) Panama invasion (1989) Iraq invasion (2003). Ls Model News Herman, seeking to build upon a more institutionalized framework to analyze mainstream media functioning, joined the media watchdog group Fairness and Accuracy in Reporting (FAIR), which has as its goal the critique, documentation, and statistical analysis of what it alleges is media bias and censorship since 1986. With the emergence of the World Wide Web as a cheap and potentially wide-ranging means of communication, a number of independent websites have surfaced which adopt the propaganda model to subject media to close scrutiny. "