Lean Six Sigma is a team-focused managerial approach that seeks to improve performance by eliminating resource waste and defects. It combines Six Sigma methods and tools with the lean manufacturing/lean enterprise philosophy.

Six Sigma is a set of methodologies and tools used to improve business processes by reducing defects and errors, minimizing variation, and increasing quality and efficiency. The goal of Six Sigma is to achieve a level of quality that is nearly perfect, with only 3.4 defects per million opportunities.

Lean Six Sigma is a set of proven, time-tested tools that have helped companies navigate, survive and succeed, even through periods of market uncertainty. Very generally, Lean focuses on ways to reduce waste in workflows, while Six Sigma refines processes to be more efficient.