What is Six Sigma?

Six Sigma Tutorial
Six Sigma is a highly disciplined process that helps us focus on developing and delivering near-perfect products and services.

Features of Six Sigma

  • Six Sigma’s aim is to eliminate waste and inefficiency, thereby increasing customer satisfaction by delivering what the customer is expecting.
  • Six Sigma follows a structured methodology, and has defined roles for the participants.
  • Six Sigma is a data driven methodology, and requires accurate data collection for the processes being analyzed.
  • Six Sigma is about putting results on Financial Statements.
  • Six Sigma is a business-driven, multi-dimensional structured approach for:
    • Improving Processes
    • Lowering Defects
    • Reducing process variability
    • Reducing costs
    • Increasing customer satisfaction
    • Increased profits
The word Sigma is a statistical term that measures how far a given process deviates from perfection.
The central idea behind Six Sigma: If you can measure how many “defects” you have in a process, you can systematically figure out how to eliminate them and get as close to “zero defects” as possible and specifically it means a failure rate of 3.4 parts per million or 99.9997% perfect.

Key Concepts of Six Sigma

At its core, Six Sigma revolves around a few key concepts.
  • Critical to Quality : Attributes most important to the customer.
  • Defect : Failing to deliver what the customer wants.
  • Process Capability : What your process can deliver.
  • Variation : What the customer sees and feels.
  • Stable Operations : Ensuring consistent, predictable processes to improve what the customer sees and feels.
  • Design for Six Sigma : Designing to meet customer needs and process capability.
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