What is the name of a data-driven approach aimed at reducing process variation and defects in business processes?

What is the name of a data-driven approach aimed at reducing process variation and defects in business processes?

• A. Lean
• B. Six Sigma
• C. Kaizen
• D. TQM

Answer: (B)

Six Sigma is a data-driven approach focused on reducing process variation and defects. It uses rigorous statistical methods to understand how a process deviates from its ideal performance, quantify that variation, and drive improvements with evidence. The approach follows a structured problem‑solving path, commonly defined as Define, Measure, Analyze, Improve, and Control, to ensure improvements stick. By measuring defects per million opportunities and aiming for higher sigma levels, teams can discover root causes, test hypotheses with data, and implement changes that make processes more predictable and capable. This data-centric emphasis on understanding and lowering variation is what sets Six Sigma apart from other methods that focus more on speed, incremental tweaks, or broad quality philosophies. Lean concentrates on waste and flow, Kaizen on continual small changes, and TQM on overall quality culture; none center as directly on reducing variation through statistical analysis as Six Sigma does.

Six Sigma is a data-driven approach focused on reducing process variation and defects. It uses rigorous statistical methods to understand how a process deviates from its ideal performance, quantify that variation, and drive improvements with evidence. The approach follows a structured problem‑solving path, commonly defined as Define, Measure, Analyze, Improve, and Control, to ensure improvements stick. By measuring defects per million opportunities and aiming for higher sigma levels, teams can discover root causes, test hypotheses with data, and implement changes that make processes more predictable and capable. This data-centric emphasis on understanding and lowering variation is what sets Six Sigma apart from other methods that focus more on speed, incremental tweaks, or broad quality philosophies. Lean concentrates on waste and flow, Kaizen on continual small changes, and TQM on overall quality culture; none center as directly on reducing variation through statistical analysis as Six Sigma does.