13. A system including a processor and memory for designing and modeling applications comprising: an integrated development environment, the integrated development environment including a first user interface for managing an application model and a second user interface for drafting a graphical model, wherein the application model corresponds to an application being developed, the application model comprising a plurality of development objects used in the application and relationships between the development objects, wherein the graphical model comprises a plurality of graphical objects that represent, graphically, the development objects in the application model and the relationships between the development objects, and wherein the first and second user interfaces display a design-time view of the application model corresponding to the application and the graphical model corresponding to the application model, the integrated development environment performing the steps of: generating, independent of the application model and in response to input from the user, one or more first graphical objects; selecting, in response to input from the user, a first development object from the plurality of development objects to be associated with a first graphical object of the one or more first graphical objects; and associating the first development object with the first graphical object.
13. A system including a processor and memory for designing and modeling applications comprising: an integrated development environment, the integrated development environment including a first user interface for managing an application model and a second user interface for drafting a graphical model, wherein the application model corresponds to an application being developed, the application model comprising a plurality of development objects used in the application and relationships between the development objects, wherein the graphical model comprises a plurality of graphical objects that represent, graphically, the development objects in the application model and the relationships between the development objects, and wherein the first and second user interfaces display a design-time view of the application model corresponding to the application and the graphical model corresponding to the application model, the integrated development environment performing the steps of: generating, independent of the application model and in response to input from the user, one or more first graphical objects; selecting, in response to input from the user, a first development object from the plurality of development objects to be associated with a first graphical object of the one or more first graphical objects; and associating the first development object with the first graphical object. 17. The system of claim 13 , wherein the one or more first graphical objects in the graphical model are assigned different association types to one or more corresponding development objects in the application model.