Which role typically leads Six Sigma improvement projects?

The role that typically leads Six Sigma improvement projects is the Black Belt. Black Belts are trained in advanced Six Sigma methodologies and are responsible for leading cross-functional process improvement teams. They have a deep understanding of statistical analysis and are skilled in project leadership, which allows them to effectively facilitate meetings, drive project initiatives, and make data-driven decisions.

Black Belts are crucial in managing the execution of Six Sigma projects, guiding team members, and ensuring that the project goals align with the overall business objectives. They also mentor Yellow Belts and Green Belts in their development and provide insights on process capabilities and improvements. This leadership role is essential for achieving the desired improvements in quality and efficiency that Six Sigma aims to deliver.

Other roles, such as Green Belts and Yellow Belts, support the Black Belts and may lead smaller, less complex projects or specific tasks within larger projects, but they do not carry the same level of responsibility or expertise as Black Belts. The Master Black Belt is a more senior role focused on strategic implementation of Six Sigma within an organization and mentoring Black Belts, thus playing a different role in project leadership.