Introduced in Japan in 1966 by Yoji Akao.

Quality function deployment is an approach for

implementing new design into the market.

Quality-Customer satisfaction .

Function-What must be done(Focus).

Deployment-How to use & develop it.

Customer Requirements

Company Measures

Parts design

Manufacturing Process

Production Requirements

(Day to Day Operations)

Product planning

Part deployment

Process planning

Process control

Product planning also called ‘The House of Quality’.

Customer

1.Expectations &

2. Needs.

Led by engineering department.

Manufacturing parts to be designed according to

the new process.

Manufacturing process is documented.

Manufacturing using engineering tools

Performance indicators.

Decisions are made to prevent failures.

Maintenance schedules

An initial step in launching QFD.

The HOQ leads to 4Ps processes.

A tool for comparing existing and potential designs.

1. List Customer Requirements .

2. List Technical Descriptors.

3. Develop a Relationship Matrix.

4. Develop the Interrelationship Matrix

5. Competitive Assessment

6. Develop Prioritized Customer Requirements

7. Develop Prioritized Technical Descriptors

Problem-Needs were not adequately understood.

Solution - Voice of the customer

Will list customer requirements and expectations

•Primary factors – broad

•Secondary factors - narrow

"Voice of the Engineer“

Attributes to be benchmarked against the

competition.

› Identifies the strength of relationship between customer requirements and technical descriptors

+9 Strong (●)

+3 Medium (○)

+1 Weak (Δ)

0 Not Applicable (Nothing)

Interrelationship Matrix

› Identify areas in your process where technical issues may conflict or be tough.

+9 Strong Positive (●)

+3 Positive (○)

-3 Negative (x)

-9 Strong Negative (*)

› Customer requirements on a scale of 1 to 5 (1 worst – 5 best)

› Technical descriptors on a scale of 1 to 5 (1 worst – 5 best)

› Finally rankings are compared to competitors by meeting customer requirements and technical descriptors on a scale of 1 to 5.

Develop Prioritized Customer Requirements

Technical Analysis of competitor products.

› Can Identify:

Importance of a customer requirement (1 to 10)

Target Value – where the company wants to be (1 to 5)

Scale-up factor – how many points are necessary to meet the target value

Develop Prioritized Technical

Descriptors

› Can identify:

Degree of difficulty of a technical descriptor

(1 to 10)

Target value – where the company wants to

be (1 to 5)

Prioritizes what to work on and why.

Competitive advantage world.