- Defining the problems
- Measuring key aspects of the production process
- Analyzing the data to study cause and effect relationships
- Improve upon the current processes to reduce defects and process variation
- Control and modify future operations to reduce the likelihood of defects
Six Sigma Doctrine's Three Goals
- The reduction of process variation leads to stable and predictable process results.
- All manufacturing and business processes can be measured, improved upon and controlled with fixed variables.
- The entire company must be committed - from the top down - to the Six Sigma doctrine for the implemented changes to have any measurable impact.
Six Sigma Seperates Itself in Four Ways
- Culturing strong and passionate leaders is necessary at every level to successfully apply the Six Sigma ideals.
- The focus should always be on the end product - quantifiable financial returns - and in some cases the ends will justify the means.
- All decisions must be made using empirical evidence backed by verifiable data, and not by broad assumptions.
- The hierarchy of the belt system is necessary to encourage Six Sigma followers to remain competitive, and in some cases, make hard and ruthless decisions to reach the set goal.
Lean Six SigmaThe success of Six Sigma has led to the creation of a divergent business management style called Lean Six Sigma, designed for lean manufacturing, which is meant to reduce process flow and waste issues. By shifting the focus from manufacturing defects to inefficient work processes, Lean Six Sigma are often considered the "ultimate efficiency experts" in the industry. However, Lean Six Sigma is also focused on shifting wasted processes towards growth processes, by re-allocating stagnant manpower and capital to more productive, forward-looking projects.
Certification ProgramsA combination of traditional Six Sigma and Lean Six Sigma is touted by followers as the ultimate method of reducing waste and safely achieving and breaking through financial forecasts. Six Sigma certification courses can be found online, as well as through certified instructors at the American Society for Quality and the Institute of Industrial Engineers. In addition, large corporations which have adopted the Six Sigma system may offer training to employees.
However, some critics have accused Six Sigma of being nothing more than a buzzword full of fancy terms putting a fresh coat of paint of traditional team management philosophies and ideals. In addition, due to its popularity, a number of questionable and unqualified online courses have appeared, which may or may not offer the true Six Sigma experience.