Which of the following statements is incorrect?

In the concept development phase, the company is concerned with idea generation and the evaluation of alternative ideas for the new product.

At the end of the product design phase, the firm will have a set of detailed product specifications and engineering drawings.

Design for manufacturability aims to simplify product design to make the product easier to make.

At the beginning of concept development phase, the firm has a general idea of the design but needs to specify the product$/$service design parameters in detail.

Part number proliferation is problematic for Purchasing because it tends to reduce order quantities and increase per piece price.