Alpha + Beta Testing Attributes Quality. Product Attributes Development List of product attributes...

Alpha + Beta Testing Attributes

Quality

Product Attributes Development

• List of product attributes– Tangible goods manufacture company– Intangible services company

• Measurement unit

Goods Service

House of QualityQuality Function Deployment-

QFD

Scope of product

development team

Product Development System

Scope for design and engineering

teams

Evaluation

Introduction

Test Market

Functional Specifications

Design Review

Product Specifications

Customer Requirements

Ability

Ideas

Quality Function Deployment

Identify customer wants Identify how the good/service will satisfy customer wants

Relate customer wants to product how's Identify relationships between the firm’s how's

Develop importance ratings Evaluate competing products

Compare performance to desirable technical attributes

Translates voice of customer into technical design requirementsDisplays requirements in matrix diagrams called “house of quality”

QFD House of Quality

Relationshipmatrix

How to satisfycustomer wants

Interrelationships

Com

petiti

ve

asse

ssm

ent

Technicalevaluation

Target values

What the customer wants

Customer importance

ratings

Weighted rating


Design Characteristics

House of Quality Example

Your team has been charged with designing a new camera for Great Cameras, Inc.The first action is to construct a House of Quality


Customerimportance

rating(5 = highest)

Lightweight 3Easy to use 4Reliable 5Easy to hold steady 2Color correction 1

What the customer

wants

What the Customer

Wants

RelationshipMatrix

TechnicalAttributes and

Evaluation

How to SatisfyCustomer Wants

Interrelationships

Ana

lysi

s of

Com

petit

ors

House of Quality ExampleWhat the Customer

Wants

RelationshipMatrix


Evaluation


Interrelationships

Ana

lysi

s of

Com

petit

ors

Low

ele

ctric

ity re

quire

men

ts

Alum

inum

com

pone

nts

Auto

focu

s

Auto

exp

osur

e

Pain

t pal

let

Ergo

nom

ic d

esig

n How to SatisfyCustomer Wants


Lightweight 3Easy to use 4Reliable 5Easy to hold steady 2Color corrections 1

What the Customer

Wants

RelationshipMatrix


Evaluation


Interrelationships

Ana

lysi

s of

Com

petit

ors

High relationshipMedium relationshipLow relationship

Relationship matrix


Wants

RelationshipMatrix


Evaluation


Interrelationships

Ana

lysi

s of

Com

petit

ors

Low

ele

ctric

ity re

quire

men

ts

Alum

inum

com

pone

nts

Auto

focu

s

Auto

exp

osur

e

Pain

t pal

let

Ergo

nom

ic d

esig

n

Relationships between the things we can do


Weighted rating

What the Customer

Wants

RelationshipMatrix


Evaluation


Interrelationships

Ana

lysi

s of

Com

petit

ors


Our importance ratings 22 9 27 27 32 25


Com

pany

A

Com

pany

B

G PG PF GG PP P


Our importance ratings 22 5

How well do competing products meet customer wants

What the Customer

Wants

RelationshipMatrix


Evaluation


Interrelationships

Ana

lysi

s of

Com

petit

ors


Wants

RelationshipMatrix


Evaluation


Interrelationships

Ana

lysi

s of

Com

petit

ors

Target values(Technical attributes)

Technical evaluation

Company A 0.7 60% yes 1 ok G

Company B 0.6 50% yes 2 ok F

Us 0.5 75% yes 2 ok G

0.5

A

75%

2’ to

∞

2 ci

rcui

ts

Failu

re 1

per

10,

000

Pane

l ran

king


Completed House of Quality

Lightweight 3

Easy to use 4

Reliable 5

Easy to hold steady 2

Color correction 1

Our importance ratings

Low

ele

ctric

ity re

quire

men

ts

Alum

inum

com

pone

nts

Auto

focu

s

Auto

exp

osur

e

Pain

t pal

let

Ergo

nom

ic d

esig

n

Com

pany

A

Com

pany

B

G P

G P

F G

G P

P P

Target values(Technical attributes)

Technical evaluation

Company A 0.7 60% yes 1 ok G

Company B 0.6 50% yes 2 ok F

Us 0.5 75% yes 2 ok G

0.5

A

75%

2’ to

∞

2 ci

rcui

ts

Failu

re 1

per

10,

000

Pane

l ran

king

22 9 27 27 32 25

House of Quality Sequence

Des

ign

char

acte

ristic

s

Specific components

House 2

Cust

omer

re

quire

men

ts

Design characteristics

House 1

Spec

ific

com

pone

nts

Production process

House 3 Pr

oduc

tion

proc

ess

Quality plan

House 4

Deploying resources through the organization in response to customer requirements

Copyright 2006 John Wiley & Sons, Inc.

5-17

Quality FunctionDeployment (QFD)

• Translates voice of customer into technical design requirements

• Displays requirements in matrix diagrams– first matrix called “house of quality”– series of connected houses


5-18

House of Quality

Trade-off matrix

Design characteristics

Customer requirements

Target values

Relationship matrix

Competitive assessment

Imp

ort

ance

1 2

3

4

5

6


5-19

Competitive Assessment of Customer Requirements

Iro

ns

wel

lE

asy

and

sa

fe t

o u

se

Competitive Assessment

Customer Requirements 1 2 3 4 5

Presses quickly 9 B A X

Removes wrinkles 8 AB X

Doesn’t stick to fabric 6 X BA

Provides enough steam 8 AB X

Doesn’t spot fabric 6 X AB

Doesn’t scorch fabric 9 A XB

Heats quickly 6 X B A

Automatic shut-off 3 ABX

Quick cool-down 3 X A B

Doesn’t break when dropped 5 AB X

Doesn’t burn when touched 5 AB X

Not too heavy 8 X A B


5-20

En

erg

y n

ee

de

d t

o p

res

s

We

igh

t o

f ir

on

Siz

e o

f s

ole

pla

te

Th

ick

ne

ss

of

so

lep

late

Ma

teri

al

us

ed

in

so

lep

late

Nu

mb

er

of

ho

les

Siz

e o

f h

ole

s

Flo

w o

f w

ate

r fr

om

ho

les

Tim

e r

eq

uir

ed

to

re

ac

h 4

50

º F

Tim

e

to g

o f

rom

45

0º

to 1

00

º

Pro

tec

tiv

e c

ov

er

for

so

lep

late

Au

tom

ati

c s

hu

toff


Presses quickly - - + + + -

Removes wrinkles + + + + +

Doesn’t stick to fabric - + + + +

Provides enough steam + + + +

Doesn’t spot fabric + - - -

Doesn’t scorch fabric + + + - +

Heats quickly - - + -

Automatic shut-off +

Quick cool-down - - + +

Doesn’t break when dropped + + + +

Doesn’t burn when touched + + + +

Not too heavy + - - - + -

Iro

ns

wel

lE

asy

and

sa

fe t

o u

se

From Customer Requirements

to Design Characteristics


5-21

En

erg

y n

eed

ed t

o p

ress

Wei

gh

t o

f ir

on

Siz

e o

f so

lep

late

Th

ickn

ess

of

sole

pla

te

Mat

eria

l u

sed

in

so

lep

late

Nu

mb

er o

f h

ole

s

Siz

e o

f h

ole

s

Flo

w o

f w

ate

r fr

om

ho

les

Tim

e re

qu

ire

d t

o r

each

450

º

Tim

e t

o g

o f

rom

45

0º t

o 1

00º

Pro

tect

ive

cove

r fo

r s

ole

pla

te

Au

tom

atic

sh

uto

ff

--

++

+

Tradeoff Matrix


5-22

En

erg

y n

eed

ed t

o p

ress

Wei

gh

t o

f ir

on

Siz

e o

f so

lep

late

Th

ickn

ess

of

sole

pla

te

Mat

eria

l u

sed

in

so

lep

late

Nu

mb

er o

f h

ole

s

Siz

e o

f h

ole

s

Flo

w o

f w

ate

r fr

om

ho

les

Tim

e re

qu

ire

d t

o r

each

450

º

Tim

e t

o g

o f

rom

45

0º t

o 1

00º

Pro

tect

ive

cove

r fo

r

sole

pla

te

Au

tom

atic

sh

uto

ff

Units of measure ft-lb lb in. cm ty ea mm oz/s sec sec Y/N Y/N

Iron A 3 1.4 8x4 2 SS 27 15 0.5 45 500 N Y

Iron B 4 1.2 8x4 1 MG 27 15 0.3 35 350 N Y

Our Iron (X) 2 1.7 9x5 4 T 35 15 0.7 50 600 N Y

Estimated impact 3 4 4 4 5 4 3 2 5 5 3 0

Estimated cost 3 3 3 3 4 3 3 3 4 4 5 2

Targets 1.2 8x5 3 SS 30 30 500

Design changes * * * * * * *

Ob

jec

tiv

e

me

as

ure

s

Targeted Changes in Design


5-23

SS = SilverstoneMG = MirorrglideT = Titanium

CompletedHouse of Quality


5-24

A Series of Connected QFD Houses

Cu

sto

mer

re

qu

irem

ents

House of quality

Product characteristics

A-1P

rod

uct

ch

arac

teri

stic

s

Parts deployment

Part characteristics

A-2

Par

t ch

arac

teri

stic

sProcess planning

Process characteristics

A-3

Pro

cess

ch

arac

teri

stic

s

Operating requirements

Operations

A-4


5-25

Benefits of QFD

Promotes better understanding of customer demands

Promotes better understanding of design interactions

Involves manufacturing in design process Breaks down barriers between functions and

departments Provides documentation of design process

Alpha + Beta Testing Attributes Quality. Product Attributes Development List of product attributes...

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