Post on 29-Dec-2015
description
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 –
The Quality Function Deployment Process
1. Identify the Customer(s)2. Determine Customer Requirements/Constraints3. Prioritize each requirement4. Competitive Benchmarking5. Translate Customer Requirements into
Measurable Engineering specifications6. Set Target values for each Engineering
Specification
OK, Let’s Walk Through A Simple Example
QFD ExampleAn Automobile Bumper
Customer Request:
There is too much damage to bumpers in low-speed collisions. Customer wants a better bumper.
QFD ExampleAn Automobile Bumper
Step 1: Identify Customer(s)– Repair Department– Automobile Owner– Manufacturing Plant– Sales Force
QFD ExampleAn 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 ExampleAn Automobile Bumper
Step 3: Prioritize Customer Requirements
QFD ExampleAn Automobile Bumper
Put prioritized Customer Requirements into a House of Quality Chart
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
QFD ExampleAn Automobile Bumper
Put competitive benchmarking information into
House of Quality Chart
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’
QFD ExampleAn Automobile Bumper