六西格玛基础知识简介(英文版)(ppt 22页)

六西格玛基础知识简介内容提要：
Six Sigma Philosophy
We are in business to make money
 We make money by satisfying needs
 We are able to satisfy needs by doing
 Every need/do pair is an interaction
 The aim of customer focus is on improving need/do interaction
 Repetition of the same action constitute a process
Improve our business means improvement of our processes
Customers need products/services on-time, with zero defects, with lower cost
 As process capability improves, the product quality increases
 As quality increases, costs and cycle-time go down…………...
 The reduction of defects, cycle-time, cost leads to improved customer satisfaction
 As customer satisfaction improves, the likelihood of doing business increases
 As business increases, we (as individual and society) grow and prosper
What is Six Sigma?
Sigma is a statistical unit of measure which reflects process capability.  The sigma scale of measure is perfectly correlated to such characteristics as defects-per-unit, parts per million defective (PPM), and a probability of a failure/error.
The sigma value indicates how often defects are likely to occur. The higher the sigma value, the less likely a process will produce defects.  As sigma increases, costs go down, cycle time goes down, and customer satisfaction goes up.
Six Sigma Is….
Six Sigma is disciplined methodology for continuous improvement for
 Reducing process variability and keeping it reduced
 achieve benefits from improvements in:
 better product/process quality
 reduce scarp and rework
 reduce cycle time
 better product/process design
 reduce major expanses
 A tool set to make that change practical
 Empowered people have the control they need to improve the way they work
 A common language for discussing, measuring and comparing process capabilities
 A powerful competitive advantage……….
..............................