" 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. Solar System Model Create 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. "

"] [3] References Chomsky, Noam. Understanding Power: the Indispensable Chomsky. New York: the New Press, 2002. Herman, Edward S. and Chomsky, Noam. Manufacturing Consent: the Political Economy of the Mass Media. New York: Pantheon Books, 1988. Solar System Poster Model Herman, Edward S. 'The Propaganda Model: A Retrospective,' Against All Reason, December 9, 2003. "