This article explores the use and development of the SERVQUAL Model for evaluating the quality of service. It discusses the five dimensions of SERVQUAL - tangibles, reliability, responsiveness, assurance, and empathy. The article also highlights the criticism of the SERVQUAL Model and discusses various research methodologies used in the field. The conclusion summarizes the importance of quality in the service industry and the role of the SERVQUAL Model in improving service performance.