In this recipe, we are going to build our Business Service Layer, which consists of one entity object based on the
EMPLOYEES table, one view object based on the entity object, and one application module to host the latest view object.
In a real application, it's always a good practice to establish a uniform naming convention for your business components, such as suffixes and package names, which can be found by navigating to Tools | Preferences | ADF Business Components | Object Naming and Packages.
This will be the only recipe that talks about Business Service in brief in this book. If you want to know more about building Business Service, check the official documentation at http://docs.oracle.com/middleware/1212/adf/ADFFD/partpage2.htm#ADFFD20093 ...