Finally! We are back to real programming! With the infrastructure in place and our tools set up correctly, we're ready to start building our real enterprise application. In this chapter, you will be implementing two subsystems containing the two use cases we prototyped in the Proof of Concept in Chapter 1, The ADF Proof of Concept, and you will be collecting them into a completed enterprise application.
Tip
Decorate the project room
The room where your team is working should be decorated. Not with Christmas ornaments, but with something infinitely more useful: the data model. Even if you have not used JDeveloper to define your data model, you can use JDeveloper to create a database diagram.
Print out the entire data model for your system in a size large enough to be able to read every column in every table. Unless you work in the construction industry, you probably don't have a printer large enough to fit everything on one sheet—go to your local...