Checkpoint

Where We've Been

• A visual modeling tool is necessary to expedite the development of program code. The primary sources for the code are the class and component diagrams.

• Just as forward engineering is beneficial, it is important to reverse-engineer the application code into the visual model. This iterative process—forward engineering, coding, and then reverse engineering—is ongoing throughout the project lifecycle.

• Not one line of SQL is necessary to implement the container-managed persistence (CMP) model as implemented in the Enterprise JavaBean 2.0 specification.