Lean Six Sigma Green Belt

Lean Six Sigma Green Belt

Lean Six Sigma is a fact-based, data-driven philosophy of improvement that values defect prevention over defect detection. It drives customer satisfaction and bottom-line results by reducing variation, waste, and cycle time, while promoting the use of work standardization and flow, thereby creating a competitive advantage. It applies anywhere variation and waste exist, and every employee should be involved.

Lean Six Sigma combines the strategies of Lean and Six Sigma. Lean principles help to reduce or eliminate process wastes. Six Sigma focuses on variation – reduction in process. Thereby, the principles of Lean Six Sigma help to improve the efficiency and quality of the process.

Principles of Six Sigma:

Success of Six Sigma implementation is based upon five main principles:

Concentrating on customer requirements

  • Using accurate measurements to do error-less statistical analysis to understand improvement opportunities for building a solution for identification of root cause of problems (variations)
  • Being efficient and capable to eliminate variation to continually improve the process.
  • Involving manpower in Six Sigma cross-functional teams.
  • Being thorough and being flexible

Green Belts tend to be skilled team players and their main focus is on improving process quality. Six Sigma green belts apply their knowledge of the methodology to real life organisational situations. They help to improve various aspects of work processes, such as project processes, data inspection and general processes.

As well as the work experience, a good green belt needs the specific qualities to become successful as a Six Sigma Green Belt:

  • An analytical and logical frame of thinking
  • Perseverance
  • A passion and an eye for improvement opportunities
  • Strong leadership skills


Green belts have a deep understanding of the overall process and concepts. They make sure to deliver feedback and drive performance goals. The following are examples of their main responsibilities:

  • Lead improvement teams.
  • Operate under the supervision of a Six Sigma Black Belt.
  • Analysis and problem-solving.
  • Six Sigma project participation rather than direct leadership.
  • Coordination with the project data collection process team and validation of the measurement system.
  • Projects within green belt’s own functional area.
  • Team facilitation skills improvement.
  • Development of a Project charter
  • Development of SIPOC (Supplier, Input, Process and Output) Diagram for the project.

Green Belts may be tasked with technical work, so this may be something that requires extra training or development. It is seen as an important part of progression within an organisation. Green belts should also focus on applying their projects in an efficient way so that departmental organisational or client objectives are met. Green belts should also remember to always support the lean Six Sigma Black Belts in completing the project successfully.


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