Web Dynpro technology is based on the Model View Controller paradigm, to ensure a clear division between the definition of the user interface and the implementation of the application logic. Within this concept, the model retrieves the application data from the back-end system. If you want to define multiple models, the model must be bound to the relevant Web Dynpro component that the model is to use.
The data for a Web Dynpro application can originate from different sources. You can
For more information about Web Dynpro for Java, see Web Dynpro Model Tools in the Development Manual.