Chapter 5. The XForms Model
The term data model is probably one of the most terrifying and confusing terms[1] to ever get written in a Web specification. That's why the XForms specification goes to great lengths to avoid that term. Instead, XForms Model is the name given to the form description. That name was chosen mainly because it wasn't "data model," but also to evoke thoughts of the Model-View-Controller (MVC) design pattern in programming. In MVC, a model contains all the essential data, and one or more views provide a viewpoint to examine or interact with the data. The XForms Model is analogous to a MVC model, and form controls, covered in Chapter 6, serve the function of views. (There's nothing that directly maps to a controller in XForms, though portions of the processing model and XForms Events play a similar role.)
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