Six Sigma
Strategy and planning
Strategy and planning
Six Sigma is a method for reducing variation and defects in processes using data and statistics, aiming for predictable quality.
Where Lean removes waste, Six Sigma targets deviation: why does one project run smoothly and another not?
The approach leans on measurement. Without reliable data on lead time, errors or complaints you get no further than opinions.
Related terms
- LeanLean is a way of working centred on customer value and removing everything that doesn't contribute to it: waiting, rework, overproduction.
- DMAICDMAIC is the standard improvement cycle: Define, Measure, Analyze, Improve, Control — scope the problem, measure, find causes, improve and sustain.
- Statistical significanceStatistical significance indicates how likely it is that the difference between two variants isn't chance. In marketing we usually work at 95% confidence.