Nested Application Modules
If you build composite application modules by including nested instances of other application modules, the Data Control Palette reflects this component assembly in the tree hierarchy. For example, assume that in addition to the SRDemo application’s oracle.srdemo.model.SRService application module, you created the following application modules in the same package:
An application module named ProductService. You renamed its data control to ProductService.
An application module named CompositeService. You renamed its data control to CompositeService.