Six Sigma is a process improvement methodology that seeks to reduce defects and variability in manufacturing and business processes. It was originally developed by Motorola in 1986 and was later adopted by other companies like General Electric. The textile industry is well-suited for Six Sigma given the variability in its processes. Key aspects of Six Sigma include defining, measuring, analyzing, improving, and controlling quality to reduce defects. It utilizes statistical tools and creates roles like Champions, Black Belts, Green Belts to lead projects. The document outlines potential areas for Six Sigma application in the textile industry and how it has been used successfully by companies like DuPont to improve productivity and quality.