The case study that I selected is “Customer Satisfaction Research of Parliamentary and Health Service”. They are an agent of customers to complain about the government departments and other public organizations. The research were finding about the customers satisfy their service or not, and what customers think they could do better by using qualitative method to investigate. They did the survey to ask customers by telephone, then found out the conclusion what customers want the company did to satisfy customers better, how do people find out about their service, outcome of complain, and know about attitude of customers with their service.