According to quality function deployment (QFD), customer needs are gathered through:

According to quality function deployment (QFD), customer needs are gathered through surveys. QFD is a methodology for translating customer requirements into product or service specifications by listening to the voice of the customer (VOC). Surveys are one of the methods for collecting VOC data, which can include customer preferences, expectations, problems, and feedback. Surveys can be conducted through various channels, such as interviews, questionnaires, focus groups, or online platforms. Surveys help to identify and prioritize the customer needs and wants, and to measure the customer satisfaction and loyalty12. References: 1 What is Quality Function Deployment (QFD)? | ASQ 3 2 CPIM Exam References - Association for Supply Chain Management 1