We present the best ideas from the Research and brainstorming stage to the customer and go over all the pros & cons. The best ideas then make it into the concept stage.
Because we're business-minded product designers, we have already considered things like how a product will feel in the user's hands, how the product will fit together and simplify the manufacturing process, how to improve the assembly process, and much more.
The concept stage starts to implement these considerations further and in more detail. This in tern allows us to start selecting the right suppliers and making sure our selected methods are maximizing the profitability of the product. All this is happening before we have created any 3D CAD models of the product.