6 sigma is a methodology used by a lot of companies to improve quality.
There are various 6 sigma trainings depending on your role in the organization – for instance, a project leader would be a 6 sigma black belt.
For a detailed overview, I’d recommend SearchCIO.
Have a good day,
six sigma is a very structured and well proven methodology as told above by Joelle and if the DMAIC is done properly, the success is 100% assured.