Chapter 6. The XForms User Interface

"A human being should be able to change a diaper, plan an invasion, butcher a hog, conn a ship, design a building, write a sonnet, balance accounts, build a wall, set a bone, comfort the dying, take orders, give orders, cooperate, act alone, solve equations, analyze a new problem, pitch manure, program a computer, cook a tasty meal, fight efficiently, and die gallantly. Specialization is for insects."

Robert A. Heinlein

Form controls are windows onto the form data kept in the XForms Model. In principle, this was true also for HTML forms, although the design of XForms makes a much sharper separation.