" The view gets its own data from the model (or direct from the data access layer - sometimes there is no domain logic to do). The model should have no direct knowledge of the view . However, the observer pattern can be used to provide some indirection between model and view, allowing the model to notify interested parties of a change. A view object can register itself with the model and listen for changes but the model itself remains view-agnostic. The controller does not pass domain objects (the model) to the view although it might issue a command telling the view to update itself. The user interface waits for further user interactions, which begins the cycle anew. Benefits and liabilities Although widely used, MVC has both advantages and disadvantages compared to other design options, and individual circumstances should be used to choose the most appropriate design. Model Russian We discuss some of those here. View instability vs. "

" The president of the main French television station TF1 stated this clearly in an interview in 2004, published in the book Les dirigeants face au changement (Éditions du Huitième jour) (see ): ". . . the job of TF1 is to help Coca-Cola, for example, to sell its product. [. . . Boat Model] In order for an advertising message to be perceived, the brain of the television viewer must be available. Our broadcasts are aimed at making that brain available: i. "