Final answer:
Quality Function Deployment (QFD) focuses on the customer's needs and uses the 'House of Quality Matrix' to guide design decisions (option 2), ensuring a structured and documented design process for complex products.
Step-by-step explanation:
Quality Function Deployment (QFD) is a structured design process that starts with studying and listening to customers. It is not simply aimed at lowering costs or housing quality assurance; rather, it is an inclusive approach that involves filling out the 'House of Quality Matrix' with customer demands and designer's aspirations.
The goal of QFD is to ensure that the design process remains focused on customer needs and that all decisions are well-documented and thoroughly considered, which helps prevent important issues from being forgotten or overlooked. By integrating QFD, design teams can navigate through the complexities of product design by making clear, informed, and customer-centric decisions from amidst the multitude of possible solutions.