alpha + beta testing attributes quality. product attributes development list of product attributes...
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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
Customer Requirements
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
House of Quality Example
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
TechnicalAttributes and
Evaluation
How to SatisfyCustomer Wants
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
House of Quality Example
Lightweight 3Easy to use 4Reliable 5Easy to hold steady 2Color corrections 1
What the Customer
Wants
RelationshipMatrix
TechnicalAttributes and
Evaluation
How to SatisfyCustomer Wants
Interrelationships
Ana
lysi
s of
Com
petit
ors
High relationshipMedium relationshipLow relationship
Relationship matrix
House of Quality ExampleWhat the Customer
Wants
RelationshipMatrix
TechnicalAttributes and
Evaluation
How to SatisfyCustomer Wants
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
House of Quality Example
Weighted rating
What the Customer
Wants
RelationshipMatrix
TechnicalAttributes and
Evaluation
How to SatisfyCustomer Wants
Interrelationships
Ana
lysi
s of
Com
petit
ors
Lightweight 3Easy to use 4Reliable 5Easy to hold steady 2Color corrections 1
Our importance ratings 22 9 27 27 32 25
House of Quality Example
Com
pany
A
Com
pany
B
G PG PF GG PP P
Lightweight 3Easy to use 4Reliable 5Easy to hold steady 2Color corrections 1
Our importance ratings 22 5
How well do competing products meet 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
TechnicalAttributes and
Evaluation
How to SatisfyCustomer Wants
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
House of Quality Example
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
Copyright 2006 John Wiley & Sons, Inc.
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
Copyright 2006 John Wiley & Sons, Inc.
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
Copyright 2006 John Wiley & Sons, Inc.
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
Customer Requirements
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
Copyright 2006 John Wiley & Sons, Inc.
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
Copyright 2006 John Wiley & Sons, Inc.
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
Copyright 2006 John Wiley & Sons, Inc.
5-23
SS = SilverstoneMG = MirorrglideT = Titanium
CompletedHouse of Quality
Copyright 2006 John Wiley & Sons, Inc.
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
Copyright 2006 John Wiley & Sons, Inc.
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