This is the HOW of the process. How are we going to get it made? How do we keep all the features and how do we make sure your idea is still your idea. Truth be told, during development things can look ugly before they look pretty. We build and tear down and rebuild, and repeat. We are testing the product, the concept and how to manufacture. Sourcing, regulatory research, material validation are all a part of this process. If design is the plan, then this is the detail.