This document discusses advanced quality control. It defines quality as the attributes and characteristics of a product that determine its ability to meet customer needs. Quality control aims to ensure products adhere to defined quality standards and meet client requirements. The objectives of quality control are to provide dependable and economical products of uniform quality that are acceptable to customers by preventing defects rather than just detecting them. This helps increase productivity, reduce repair costs, build loyal customer bases, and improve profits. Quality control can improve quality through both proactive and reactive approaches.