Models
In a frequently cited body of work, Foley and Wallace describe a "linguistic model" for user interface management consisting of a Presentation Layer, a Dialog Control layer and an Application layer. These layers correspond to the lexical, syntactic and semantic layers from formal language theory. While Foley's model is theoretically enlightening, it does not propose a specific practical system for separating code. There are also many interesting border cases that don't fall cleanly into one of these layers.
A more directly applicable theory of user interface management is the Model-view-controller design pattern, which is described in detail in its own article. A recent variant of MVC is the Model-view-presenter model which is similar to MVC, but has some interesting insights into the problem.
Read more about this topic: User Interface Management Systems
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