Quality function deployment is defined as a

Quality Function Deployment (QFD) is a method used to translate customer needs (the voice of the

customer) into specific product features (technical requirements). It provides a structured approach

for defining customer requirements and transforming them into detailed engineering specifications

and plans to produce the products that fulfill those needs. QFD uses tools like the House of Quality

matrix to ensure that customer requirements are systematically addressed throughout the product

development process.

Reference:

Akao, Yoji. "Quality Function Deployment: Integrating Customer Requirements into Product Design."

Productivity Press, 1990.

Hauser, John R., and Don Clausing. "The House of Quality." Harvard Business Review, May-June 1988.