• Six sigma is a measurement scale upon which improvement / performance can be gauged or overall methodology that provides standardized problem-solving tools improvement.
• What is six sigma mean?
• To understand sigma, basic statistic term is must. Sigma actually is standard deviation. Six sigma mean a process with 2Cpk, or say that 0.001ppm (0.001 defect / error found out of 1 million).
• Six Sigma Basic Statistical Introduction
• What is process sigma about?
• Process sigma is a possibility, a possibility that error/defect occur in the manufacturing process.
• Necessary to achieve six sigma?
• It depends on the customer requirement. The specification provided by customer directly affect the process sigma.
• How many sigma are required in the manufacturing process?
• It depends on the customer requirement. Six sigma company will provide the requirement on either Cpk or PPM to the supplier.
• Below is the conversion table

Page 0 | 1

• More Topic
• Six sigma basic statistical introduction
  Six sigma process
  Six sigma distribution and possibility