A system and method for performing an action on a target model associated with a notify model is disclosed. In the preferred embodiment of the present invention, the target model includes target objects and the notify model includes notify objects. The system and method comprises a model map for mapping each of the notify objects to an associated target object, and an action operator for performing the action on one or more target objects in the target model in response to a modification of the selected notify object. In the system and method, the action operator performs the action on one or more identified target objects associated with the modified selected notify object, the one or more identified target objects being determined with reference to the model map.