Quality Function Deployment (QFD) is a structured approach used in product development to ensure that customer needs and requirements are prioritized and met. It involves translating these needs into specific technical requirements, helping teams focus on what is most important to the customer throughout the design and production process. The QFD process typically uses a visual tool called the House of Quality, which maps customer desires against product features. This helps teams identify trade-offs and make informed decisions, ultimately leading to higher customer satisfaction and better product quality.