Hi In the reengineering iterative approach: During the execution of the process, ensure that the four types of components can coexist: old components not reengineered, components currently being reengineered, components already reengineered, and new components added to the system. All are clear except the last one (What is the new components added?) Thanks .

1. Hi
In the reengineering iterative approach:
During the execution of the process, ensure that the four types of components can coexist:
old components not reengineered,
components currently being reengineered,
components already reengineered, and
new components added to the system.
All are clear except the last one (What is the new components added?)
Thanks