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QUALITY FUNCTION DEPLOYMENT

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Six Sigma Qfd
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QUALITY FUNCTION DEPLOYMENT

  1. 1. QUALITY FUNCTION DEPLOYMENT (QFD) by Sanower Ali Azad GGSIPU, NEW DELHI
  2. 2. QUALITY FUNCTION DEPLOYMENT (QFD) Quality Function Deployment (QFD) is an approach to design introduced in Japan in 1966 .
  3. 3. Why QFD? A lack of well defined product development processes in research and design can be the root cause for the ruination of a company. To have a successful product, we must understand user needs.
  4. 4. Why QFD? QFD provides a formal process to understand user needs and to weave these needs across the entire product development cycle including manufacturing.
  5. 5. DEFINITION OF QFD QFD is a very systematic and organized approach of taking customer needs and demands in the consideration when designing a new products and services or when improving existing products and services.
  6. 6. CUSTOMER DRIVEN PRODUCT DEVELOPMENT Design Requirements Cu Sto mer vo ice Process Parts Design Process Requirements Production Standards Parts Requirements Phase I: Product Planning Phase II: Part Deployment Phase III: Process Planning Phase IV: Production planning Phase I: Product Planning Phase II: Part Deployment Phase III: Process Planning Phase IV: Production planning
  7. 7. QFD BENEFITS CUSTOMER DRIVEN •Creates forces on customer requirements •Uses competitive information effectively •Prioritizes resources
  8. 8. QFD BENEFITS CUSTOMER DRIVEN •Identifies items that can be acted upon •Structures resident experience/ Information
  9. 9. QFD BENEFITS REDUCES IMPLEMENTATION TIME •Decreases midstream design charge •Limits post introduction problems •Avoids future development redundancies
  10. 10. QFD BENEFITS PROMOTES TEAMWORK •Consensus based •Creates communication at interfaces
  11. 11. QFD BENEFITS PROMOTES TEAMWORK •Identifies actions at interfaces •Creates global view out of details
  12. 12. QFD BENEFITS PROVIDES DOCUMENTATION • Documents rationale for design • Is easy to assimilate • Adds structure to the information
  13. 13. BASIC HOUSE OF QUALITY MATRIX Technical Descriptors (HOWs) Material Selection Manufacturing Process +9 Strong Positive +3 Positive -9 Strong Negative -3 Negative +9 Strong +3 Medium +1 Weak Interrelationship between technical descriptors (Correlation Matrix) HOWs Vs. HOWs. Relationship between customer requirements and technical descriptors HOWs Vs. HOWs.
  14. 14. REFINEMENT OF CUSTOMER REQUIREMENTS Reasonable Cost Look Nice Finish Corrosion resistant Light Weight Strength Durable
  15. 15. REFINEMENT OF TECHNICAL DESCRIPTORS Steel Aluminum Titanium Welding Die Casting Sand Casting Forging Power Metallurgy
  16. 16. STRUCTURING AN L-SHAPED DIAGRAM Technical Descriptors (HOWs) Material Manufacturing Selection Process Reasonable Cost Look Nice Finish Corrosion resistant Light Weight Strength Durable Secondary

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