The Quality Function Deployment
Process – House of Quality
by Doug Sutton
* Turning the
customer’s desires
into engineering
specifications!
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)
How The QFD Fits Into Your Final Proposal
Letter of Intent ----------------->>
Letter of Intent ------------------>>
QFD/House of Quality ------>>
Resume -------------------------->>
QFD/House of Quality ------>>
Proposal Sections:
Transmittal
Title Page
Executive Summary
Table of Contents
List of Figures
Introduction
Design Objectives
Product, System, or Process
Division of Responsibility
Project Schedule
Budget
Qualifications
Bibliography
Appendices
Glossary
The Quality Function
Deployment Process
1.
2.
3.
4.
5.
Identify the Customer(s)
Determine Customer Requirements/Constraints
Prioritize each requirement
Competitive Benchmarking
Translate Customer Requirements into
Measurable Engineering specifications
6. Set Target values for each Engineering
Specification
OK, Let’s Walk Through A
Simple Example
QFD Example
An Automobile Bumper
Customer Request:
There is too much damage to
bumpers in low-speed
collisions. Customer wants a
better bumper.
QFD Example
An Automobile Bumper
Step 1: Identify Customer(s)
–
–
–
–
Repair Department
Automobile Owner
Manufacturing Plant
Sales Force
QFD Example
An Automobile Bumper
Step 2: Determine Customer
Requirements/Constraints
–
–
–
–
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 don’t want to pay too much (basic)
QFD Example
An Automobile Bumper
Step 3: Prioritize Customer Requirements
QFD Example
An Automobile Bumper
Put prioritized Customer Requirements into a House of
Quality Chart
QFD Example
An Automobile Bumper
Step 4: Competition Benchmarking
–
–
–
–
Identify Competitors
Test and Analyze Competitor Products
Reverse Engineer Competitor Products
Rate Competitor Products against customer
requirements/constraints
QFD Example
An Automobile Bumper
Put competitive benchmarking information into
House of Quality Chart
QFD Example
An 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’
QFD Example
An Automobile Bumper
References
Previous Presentations from Julie Vanlaanen
and Dr. David Munoz
Books 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.
QFD Assignment Due Next
Tuesday!!
Note: Please review the QFD/House of Quality
Assignment on the “Assignments” web page.
Examples of previously submitted HOQ’s are on
the “Lectures” web page.
DO YOU HAVE ANY QUESTIONS?