Six Sigma is a set of techniques aimed at improving quality that was originally developed by Motorola in 1986. It focuses on customer requirements, process alignment, and timely execution to reduce defects. While initially focused only on manufacturing, Six Sigma has now expanded to be used as a general business methodology. It aims to delight customers and meet their expectations through techniques like Design for Six Sigma and the DMAIC process of define, measure, analyze, improve, and control. As awareness and use of Six Sigma grows, especially in small and medium businesses, it has the potential to be an effective quality management program for the long term.