The Quality Function Deployment Process

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The Quality Function Deployment Process House
of Qualityby Doug Sutton

• Turning the customers desires into engineering
  specifications!

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QFD?Where Are We Headed?

• Turn Design Qualities into Design Specs.
• Prioritize Design Features
• Assess the Competition
• Produce a House of Quality (Which is Due Next
  Tuesday)

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How The QFD Fits Into Your Final
Proposal Proposal Sections Letter of
Intent -----------------gtgt Transmittal Title
Page Executive Summary Table of
Contents List of Figures Letter of
Intent ------------------gtgt Introduction QFD/House
of Quality ------gtgt Design Objectives
Product, System, or Process Division
of Responsibility Project Schedule
Budget Resume --------------------------gtgt Qu
alifications Bibliography QFD/House of
Quality ------gtgt Appendices Glossary
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The Quality Function Deployment Process

1. Identify the Customer(s)
2. Determine Customer Requirements/Constraints
3. Prioritize each requirement
4. Competitive Benchmarking
5. Translate Customer Requirements into Measurable
   Engineering specifications
6. Set Target values for each Engineering
   Specification

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OK, Lets Walk Through A Simple Example
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QFD ExampleAn Automobile Bumper

• Customer Request
• There is too much damage to bumpers in
  low-speed collisions. Customer wants a better
  bumper.

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QFD ExampleAn Automobile Bumper

• Step 1 Identify Customer(s)
• Repair Department
• Automobile Owner
• Manufacturing Plant
• Sales Force

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QFD ExampleAn Automobile Bumper

• Step 2 Determine Customer Requirements/Constraint
  s
• I want something that looks nice (basic)
• It must hold my license plate (performance)
• I want it strong enough not to dent (excitement)
• It must protect my tail-lights and head-lights
  (performance)
• I dont want to pay too much (basic)

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QFD ExampleAn Automobile Bumper

• Step 3 Prioritize Customer Requirements

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QFD ExampleAn Automobile Bumper

• Put prioritized Customer Requirements into a
  House of Quality Chart

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QFD ExampleAn Automobile Bumper

• Step 4 Competition Benchmarking
• Identify Competitors
• Test and Analyze Competitor Products
• Reverse Engineer Competitor Products
• Rate Competitor Products against customer
  requirements/constraints

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QFD ExampleAn Automobile Bumper

• Put competitive benchmarking information into
• House of Quality Chart

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QFD ExampleAn Automobile Bumper

• Steps 5 and 6 Translate Customer Requirements
  into Measurable Engineering Specifications and
  define target values
• Specify how license plate will be held
• Specify how to resist dents through material
  yield strength, young's modulus, etc.
• Specify with a dollar amount the term
  inexpensive

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QFD ExampleAn Automobile Bumper

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ReferencesPrevious Presentations from Julie
Vanlaanen and Dr. David MunozBooks -1. Kevin
Otto Kristin Wood, Product Design Techniques in
Reverse Engineering and New Product Development,
Prentice Hall, 2001. 2. J. Eric Salt Robert
Rothery, Design for Electrical and Computer
Engineers, John Wiley Sons, Inc., 2002.
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QFD Assignment Due Next Tuesday!!
Note Please review the QFD/House of
Quality Assignment on the Assignments web
page. Examples of previously submitted HOQs are
on the Lectures web page.
DO YOU HAVE ANY QUESTIONS?