6西格玛基础知识01776

68.27 % 95.45 % 99.73 %
317,311 ppm 45,500 ppm 27,000 ppm
six sigma = 99.999999 % 1.96 ppb
Six sigma as a quality term
• Invented by motorola in the mid 80’s • Service marked and registered by
3.4 ppm defective
Six sigma is a way to change an organizations culture
• Provides a means of delivering
Total customer satisfaction
• Focuses everyone in the organization on the same objective
The evolution of motorola’s quality culuture
Alliance Partnerships
MASET, LLC. and
Motorola
Maset areas of expertise
•Quality(Six Sigma) •Cycle time eduction •Leadership •Cultural change •Project Management •Supply chain Management •Facilitation •Training
Virtually no defects (3.4 ppm)
Lower Specifacation
limit
-6 -5 -4 -3 -2 -1
upper Specifacation
limit
0 +1 +2 +3 +4 +5 +6
Six sigma as a quality term
Six Sigma =
• Cultures are constantly changing and evolving.
• When culture and strategy clash,invariably culture wins out.
• If the organizational culture does not embrac initiatives related to change,overall change efforts will fail
behavior
The nature of culture
• Culture provides its members with guidelines for dealing with just about everything
• Much of every culture is cvert and implicit largely submerged like an iceberg
Demystifying Six Sigma
What does Six Sigma mean to you
?
Many different definitions exist.I will try to address three this morning
Six sigma as a statistical term
Normal Distribution
Mean
ቤተ መጻሕፍቲ ባይዱ
Standard deviation
mean
68.27 %
15.865%
15.865%
Six sigam as a statistical term
• Values of a standard deviation
one sigma = two sigma = three sigma =
Motorola • Accepted by all countries • Accepted by all organization
Allow s for variation in measurement +-1.5 Sigma shift
-1.5 Mean +1.5
Virtually no defects (3.4 ppm)
affairs
• External affairs • Facilities • Finance • Health & safety • Human resources • legal
• Manufacturing • Marketing • Profuct/service
development
• Payroll • Purchasing • Sales • Scheduling • Training • Transportation • Travel
Definition of defect
Defect are good!
“Associates need to feel comfortable in identifying and reporting defects.”
The effects of defects
•Every occurrence of a defect within the process requires time to inspect,fix,and re-inspect.
•Average cycle time is directly proportional to the total number of defects in the process.
Welcome to Motorola’s Quality Story
Culture
Culture guides the enterprise’s Day-To-Day
WE’RE DIFFERENT
There is no such thing as “We’re different”
Functions in a typical
organization
• Accounting • Advertising • Distribution • Energy management • Environmental