6sigma的基本术语及定义-英文版

Region of
Questionable Performance
Lower Specification Limit
Nominal Value
Region of
Questionable Performance
Upper Specification Limit 9
What Are the Limits to
PRODUCT QUALITY
-Reduce scrap -Increase product life -Eliminate incoming testing
PROCESS QUALITY
-Reduce rework -Eliminate in-process inspection
EXTERNAL INTERNAL
❖ Historically companies have focused on quality issues for customer satisfaction
❖ Prior to six sigma there were four key quality gurus that most companies’ quality programs followed Deming Juran Crosby Taguchi
Challenge in the millennium
Question confronting business leaders and managers: It is not: “How do we succeed?” It’s: “How do we stay successfully?”
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Control
Control
Limit
Mean
Limit
Region of Customer Complaints
Region of Desired Performance
Region of Specified Performance
Region of Customer Complaints
Cos t
3
Deming’s Contribution to
Profitability CUSTOMER SATISFACTION
-Compete with value
MARKET SHARE
QUALITY
-Better products & services -Improved processes
Plan Do Act Check
2
Deming taught:
Deming
• Importance of understanding variation in work processes
• Role of management in leading for quality • Application of statistics • Plan-Do-Check-Act
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Six Sigma?
❖ Six Sigma is not a business fad tied to a single method or strategy, but rather a flexible system for improved business leadership and performance.
“People do notCrehsaisnt cgheange, people
resist being changed.” Beckhard
“It is not the strongest that survive, nor the fittest, but those
most able to adapt to change.” Charles Darwin
40
Special cause variation
Sporadic
spike from
observed problem
Common cause variation
Cost of Poor Quality
(Percent of operating costs) Production Begins
Original zone of process control
Outline
Quality level What is Six sigma? Why we need Six sigma? Development and Deployment strategy How Six sigma merges into our daily
business?
1
Overview-Four Quality Gurus
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Chronic Waste (an opportunity for improvement)
Improvement
Control
0
0
Time
Lessons Learned
New zone of process control 6
Crosby
7
Taguchi
8
TaguLocwehr i’s ContrUpipberution
PRODUCTIVITY
-Decreased cycle time -Eliminate set-up times
PRICEwk.baidu.com
-Compete with Price
COST
-Opportunity for profit
PROFIT
4
Juran
5
Planning JuranC’osntroCl ontribution
Improvement?
Clean
Basic Tools Wall
Design Wall Sheet
Design for Six Sigma (DFSS)
Statistical Tools
Basic Quality Tools
2 Sigma 3 Sigma 4 Sigma 5 Sigma 6 Sigm1a0
The Origin of Species
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Challenge
❖ Resistance-the universal reaction to change.
❖ Technical resistance ❖ Political resistance ❖ Organizational resistance ❖ Individual resistance