Key difference between Lean and Six sigma Methodology

Lean and Six Sigma are both methodologies that are used to improve processes and increase efficiency. However, they have some key differences in their approach and focus.

Lean methodology, also known as Lean Six Sigma, is focused on eliminating waste and maximizing value in a process. This is achieved by identifying and removing non-value-adding activities, streamlining processes, and continuously improving them. The goal of Lean is to create a smooth and efficient flow of work, with minimal interruption and delay.

Six Sigma, on the other hand, is focused on reducing defects and variability in a process. It uses statistical tools and data analysis to identify and eliminate sources of variability and errors in a process. The goal of Six Sigma is to achieve near-perfection, with a target of no more than 3.4 defects per million opportunities.

Both methodologies can be used together to achieve the best results. Lean methodology can be used to streamline and optimize a process, while Six Sigma can be used to ensure that the process is stable and produces high-quality results. Together, these methodologies are known as Lean Six Sigma, and provide a comprehensive approach to improving business processes.

In summary, Lean focus on eliminating waste and maximizing value, Six Sigma focuses on reducing defects and variability and when combined, Lean Six Sigma provides a comprehensive approach to improving business processes.