Lean Six Sigma is a continuous improvement methodology that focuses on decreasing
lead time by reducing waste and variation. The reduction of lead time results in lower
operating costs, higher quality, and increased customer satisfaction.
Lean Six Sigma combines Six Sigma methodology and lean methodology that can be
applied in all types of organizations.
In addition, the reduction of variation makes a more predictable process, which yields
fewer defects and enables you to make more accurate forecasts.
By utilizing Lean and Six Sigma together, you can achieve more than what you could by
using one alone. This approach provides a wider array of improvement tools for you to
draw from and increases the probability for success.
The following table gives a quick comparison between Lean and Six Sigma, note that
the last element is common to both Lean and Six Sigma. They both require a change in
leadership and employee mindset to become a successful and sustainable program.
|Focuses on reducing variation||Focuses on eliminating waste and reducing cycle time|
|Primary goal is to reduce defects in the process output||Primary goal is to reduce non-value add or wasteful process steps|
|Based on statistical formula that measures the impact of root causes on the process output||Based on best practices|
|Data Driven||Observation driven|
|Change in mindset of leadership and employees (Six Sigma Thinking)||Change in mindset of leadership and employees needed (Lean Thinking)|