2. Six Sigma provides a set of techniques and tools for process
improvement.
It was developed in Motorola (1986).
 Sir Bill Smith, “ the Father of six sigma” introduce this quality
improvement Methodology to Motorola. It’s a Trademark of
Motorola.
Six Sigma is a highly disciplined process which helps companies to
focus on development and delivery of near-perfect product/services.
Introduction

3. Definition
A six sigma process is one in which 99.9999966%
of the products manufactured are statistically
expected to be free of defects (3.4 defects per
million).
It improves the process performance, decreases
variation and maintains consistent quality of the
process output.

4. The Characteristics of Six Sigma
Statistical Quality Control
Methodical Approach
Fact and Data Based Approach
Project and Objective Based Focus
The Customer Focus
Teamwork Approach to Quality Management
Improve Cycle time

5. Levels of Six Sigma

6. Learning Curve

7. Organisation of six sigma
• Leadership council - sets goals and objectives
(define the purpose, explain the benefits,
prepare a schedule, review the system)
• Sponsor – high level positions (Vice President),
problem-solvers.
• Implementation leader – supervise the six
sigma effort by supporting the leadership
council

8. • Coach - expert (schedule preparation,
defining the outcome of the project and
mediating conflict)
• Team Leader – oversees team activities and
bridge between sponsor and team members
• Team member – individual performing specific
duties assigned to them
• Process owner – person who look after the
process.

9. Types of Six Sigma Belts
oMaster Black Belts, identified by Leaders, act as in-house
coaches on Six Sigma. They devote 100% of their time to
Six Sigma. They assist leaders and guide Black Belts and
Green Belts.
oBlack Belts, operate under Master Black Belts to apply Six
Sigma methodology to specific projects.
oGreen Belts, are the employees who take up Six Sigma
implementation along with their other job responsibilities,
operating under the guidance of Black Belts.

10. Methodologies
Six Sigma projects follow two project methodologies :
1. DMAIC
2. DMADV
These methodologies, composed of five phases.

11. Six Sigma Technical Tools
• Process map
• Critical to quality tree (CTQ tree)
• Histogram
• Process summary worksheet
• Cause and effect diagram
• Pareto chart
• Scatter diagram
• Control chart
• Run chart

12. Process map
• A process map gives the current flow of
activities and information of the process that
is being studied for improvements.

14. Critical to Quality tree (CTQ Tree)
• CTQ tree is a Six Sigma tool which transforms the
requirements of the customer into data which
can be measured.
Benefits:
• To translate vague or broad customer needs to
specific requirements
• To move from general to detailed specifications
• To identify all the aspects of customer
requirements

15. Owner satisfaction
with respect to
warranty visits
regarding new
washing machine
Number of
warranty visits
Add optional warranty visits
at 6 months
Eliminate mandatory
warranty visits
Relationship
building
Friendly phone calls
to verify the need for
warranty visit
Give small gift to customer
at first warranty visit

16. Histogram

17. Cause and Effect Diagram

18. Scatter Plot

19. Pareto Chart

20. Control Chart

23. Thank You