There is a lot to learn about design control. Design control is the NRC-mandated process for generating new modification packages. . . .
There are several important terms you must become familiar with: design inputs, design bases, engineering judgment, and others. Then, you must apply those terms correct in the design process.
One of the best ways to learn about the terms and the process is by learning how the NRC defines them and grades them.
You can do this by studying the handbook they use to train their inspectors. It is available online, free.
You can download it by clicking this link: