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. It strives to eliminate the waste of physical resources, time, effort, and talent while assuring quality in production and organizational processes.

Simply put, Lean Six Sigma teaches that any use of resources that doesn't create value for the end customer is considered a waste and should be eliminated.