The document provides a comprehensive overview of quality management systems (QMS) particularly in the pharmaceutical and biotech industries, emphasizing the importance of maintaining product quality, regulatory compliance, and customer satisfaction. It discusses key concepts such as the ISO 9000 series, total quality management (TQM), good manufacturing practices (GMP), and risk management frameworks. The article also outlines the roles and objectives of QMS, including procedures for corrective and preventive actions, change control, and the integration of various quality practices to enhance operational efficiency.