This document discusses industrial design (ID) and its role in product development. It defines ID as optimizing a product's function, value and appearance for both user and manufacturer. The document outlines the ID process, noting that ID focuses on user needs related to aesthetics and ergonomics. It also discusses how and when ID is incorporated depending on whether a product is more technology-driven or user-driven. Examples are provided of different products and how ID impacted their design and success.