Embodiments of the present invention provide a novel and non-obvious method, system and apparatus for specifying user interface interactions in a data-driven system. In one embodiment, a data-driven data processing system can include a data-driven application including a user interface including one or more controls disposed in the user interface. The system also can include one or more properties configured to accept data input. The system yet further can include markup defining a mapping between the controls and corresponding ones of the properties. Finally, the system can include a markup processor and user interface generation logic including programming to store interactivity with the controls in the corresponding properties.