The document discusses quality function deployment and Taguchi's quality loss function, which are tools used in total quality management. Quality function deployment is a planning tool that focuses on customer expectations and requirements to fulfill their needs. It involves listing customer requirements and technical descriptors, developing relationship and inter-relationship matrices, and prioritizing customer needs and technical factors. Taguchi's quality loss function evaluates the losses imparted to society when a product does not meet its target, with the goal of meeting customer needs rather than just specifications. It includes concepts like nominal-the-best, smaller-the-better, and larger-the-better quality loss situations.

1. 1Prepared by: PURUSHOTHAMAN.R.,M.E.,M.B.A,AP/EEE TQM TOOLS-II
TQM TOOLS-II
QUALITY FUNCTION DEPLOYMENT
TAGUCHI’S QUALITY LOSS FUNCTION
CONCLUSION
REFERENCES

2. 2Prepared by: PURUSHOTHAMAN.R.,M.E.,M.B.A,AP/EEE TQM TOOLS-II
QFD TEAM :
There are two types of teams namely
1.Team for designing a new product
2.Team for improving an existing product
BENEFITS OF QFD :
Improves Customer satisfaction
Creates focus on customer requirements
Uses competitive information effectively
Prioritizes resources
Identifies items that can be acted upon

3. 3Prepared by: PURUSHOTHAMAN.R.,M.E.,M.B.A,AP/EEE TQM TOOLS-II
3.Promotes Team Work
Based on consensus
Creates communication
Identifies actions
4.Provides Documentation
Documents rationale for design
Adds structure to the information
Adapts to changes (a living document)

4. 4Prepared by: PURUSHOTHAMAN.R.,M.E.,M.B.A,AP/EEE TQM TOOLS-II

5. 5Prepared by: PURUSHOTHAMAN.R.,M.E.,M.B.A,AP/EEE TQM TOOLS-II
THE STEPS IN BUILDING A HOUSE OF QUALITY ARE :
1.List Customer Requirements (WHAT’s)
2.List Technical Descriptors (HOW’s)
3.Develop a Relationship Matrix Between WHAT’s and HOW’s
4.Develop an Inter-relationship Matrix between HOW’s
5.Competitive Assessments
a.Customer Competitive Assessments
b.Technical Competitive Assessments
6.Develop Prioritized Customer Requirements
7.Develop Prioritized Technical Descriptors

6. 6Prepared by: PURUSHOTHAMAN.R.,M.E.,M.B.A,AP/EEE TQM TOOLS-II
TAGUCHI’S QUALITY LOSS FUNCTION
Taguchi’s Quality Loss Function concept combines cost, target and
variation in one metric with specifications being of secondary importance.
Taguchi has defined quality as the loss imparted to society from the time a
product is shipped. Societal losses include failure to meet customer
requirements, failure to meet ideal performance and harmful side effects.
CUSTOMERS PERCEIVE QUALITY AS MEETING THE TARGET RATHER THAN
JUST MEETING THE SPECIFICATIONS.
There are three common quality loss functions
1.Nominal - the - best.
2.Smaller - the - better.
3.Larger - the - better.

7. 7Prepared by: PURUSHOTHAMAN.R.,M.E.,M.B.A,AP/EEE TQM TOOLS-II
NOMINAL – THE – BEST :
Although Taguchi developed so many loss functions, many situations are
approximated by the quadratic function which is called the Nominal – the –
best type

8. 8Prepared by: PURUSHOTHAMAN.R.,M.E.,M.B.A,AP/EEE TQM TOOLS-II
In the Larger – the – better concept, the target value is ∞ (infinity),
which gives a zero loss. There are no negative values and the worst
case is at y = 0. Actually, larger – the – better is the reciprocal of smaller
– the – better. The performance characteristics in Larger – the – better
are bond strength of adhesives, welding strength etc

9. 9Prepared by: PURUSHOTHAMAN.R.,M.E.,M.B.A,AP/EEE TQM TOOLS-II
CONCLUSION
Discussed element is highly useful in the
1. Quality Function Deployment is a planning tool used to fulfill customer
expectations.
2. Quality Function Deployment focuses on customer expectations or
requirements, often referred to as voice of the customer.

10. 10Prepared by: PURUSHOTHAMAN.R.,M.E.,M.B.A,AP/EEE TQM TOOLS-II
REFERENCES:
1. Gilbert, G. (1992). “Quality Improvement in a
Defense Organization.” Public Productivity and Management Review, 16(1), 65-
75.
2. Hyde, A. (1992). “The Proverbs of Total Quality Management: Recharting the
Path to Quality Improvement in the Public Sector.” Public Productivity and
Management Review, 16(1), 25-37.
3. Martin, L. (1993). “Total Quality Management in the Public Sector,” National
Productivity Review, 10, 195-213.
4. Swiss, J. (1992). “Adapting TQM to Government.” Public Administration
Review, 52, 356-362.
5. Tichey, N. (1983). Managing Strategic Change. New York: John Wiley & Sons.
6. Hill Stephen, 1991. “Why Quality Circles Failed but Total Quality Management
Might Succeed.” British Journal of Industrial Relations, 29(4), 541-568.
7. Ishikawa, K, 1985.What Is Total Quality Control? The Japanese Way.
Englewood Cliffs, New Jersey, Prentice- Hall.
8. Smith, AK, 1993. “Total Quality Management in the Public Sector.” Quality
Progress, June 1993, 45-48.