ANALYSIS ON LAPTOP
USING QFD
———A case Study on Improving
Lenovo ThinkPad X201i 3249J4C.
CONTENT
1
INTRODUCTION
2
METHODOLOGY
3
CASE STUDY
4
CONCLUSION
5
REFERENCES
1. INTRODUCTION
The purpose:
——Improve Lenovo ThinkPad X201i
3249J4C laptop.
Method:
——Quality function deployment (QFD)
——Comparing Lenovo and Sony
 We need to improve the Lenovo ThinkPad X201i
3249J4C laptop according to Customer needs .
Summary sheet of
customer investigation
Perception
Investigation
project
Awareness
Speed
Lenovo
Sony
5
4
3
Weight
5
3
5
Capacity
5
4
3
(5 levels scale)
1=don’t attention
5=special focus
 The congruent relationship between the
indexes customers care and technique index
The indexes
customers care
Speed
(attractive quality )
Weight
(attractive quality )
Technique index
Frequency
Memory
Material
Size
Thickness
Capacity
Hard disk
 The parameter comparison between Lenovo
ThinkPad X201i 3249J4 and Sony X138JC/P(pink)
Frequency Memory
Lenovo 2.13GHz
Sony
1.86GHz
2GB
2GB
Material
Weight Size Thickness
Magnalium 1.44kg
Mixed mode
carbon fiber
780g
Hard
disk
12.1
inch
17.9mm
250G
11.1
inch
13.9mm
128G
2. METHODOLOGY
QFD :
To help transform the customer needs into
engineering characteristics for a product or
service, prioritizing each product or service
characteristic while simultaneously setting
the development targets for the product or
service.
The House Of Quality
3. CASE STUDY
Step 1
Customer Requirements
Customer
requirements
Index level
Speed
Customer satisfaction
Weight
Capacity
Step 2
Planning Matrix
Comparative
analysis
Customer
Requirements
Improvement goal
Importance
Enterprise
Else
Key Customer needs
rank
Improvement goal
Standard
increased
rate
Commodity
characteristic point
Absolute
weight
Weigh
t﹪
Speed
5
4
3
5
1.25
◎
9.375
31.9
Weight
5
3
5
5
1.67
◎
12.525
42.6
Capacity
5
4
3
5
1.25
○
7.5
25.5
29.4
100
Total
Step 3
Technical Requirements
Technical index
Technical
requirements Frequency Memory
Material
Size
Thickness
Hard
disk
Step 4
Relationship Matrix
Technical
requirements
Customer
requirements
Speed
Weight
Capacity
Frequency
memory
⊙
○
Material
Size
Thickness
⊙
○
○
Hard
disk
⊙
Step 5
Correlation Matrix
Technical
requirements
Frequency
Memory
Material
Size
Thickness
Frequency
Memory
Material
*
Size
Thickness
Hard disk
*
Hard
disk
House of quality
*
Planning Matrix
Technical
requirements
Frequency
Customer
requirements
⊙
Speed
Internal
memory
Material
Size
Thickness
⊙
⊙
Weight
○
○
⊙
Capacity
17.9
11.9
23.9
16.0
16.0
14.3
Opponent
+
=
-
-
-
+
Technique
analysis
3
1
5
4
2
1
Importance（%）
Compara
tive
analysis
Targets
Desired
value
Quality
character
design
Hard
disk
Setting
Comparative
analysis
Import
-ance Enterprise
Improvement goal
Else
Improvement
goal
Standard
increased
rate
Commodity
characteristic point
Weight
﹪
5
4
3
5
1.25
◎
31.9
5
3
5
5
1.67
○
42.6
5
4
3
5
1.25
○
25.5
Technical
requirements
Frequency
Memory
Material
Size
Thickness
Hard
disk
17.9
11.9
23.9
16.0
16.0
14.3
Opponent
+
=
-
-
-
+
Technique
analysis
3
1
5
4
2
1
Importance（%）
Targets
Compara
tive
analysis
Quality
character
design
Desired
value
Setting
Technical
requirements
17.9
11.9
23.9
16.0
16.0
14.3
Opponent
+
=
-
-
-
+
Technique
analysis
3
1
5
4
2
1
√
√
Importance（%）
Targets
Comparative
analysis
Quality
character
design
Hard
Frequency MemoryMaterial
Memory
Material Size
Size Thickness
Thickness Hard disk
Frequency
disk
Desired
value
Setting
× × × √
It keeps
atof
the
same
level
ourhas
rivals'
and
it andon
The
Thickness
expense
and
onas
size
disk
research
great
is
influence
low
will
The
cost
frequency's
advancement
is
Have
additional
value
indifference
the
patent
will not
make notable
totechnology
laptop's
boost
customer's
weight.
satisfaction.
relatively
high.
Hard to improve
in
a
limited
time.
performance.
4.CONCLUSION
Improving goals:
——A thinner and smaller laptop equipped with a
bigger capacity.
5.REFERENCES
1. Sullivan LP (1986) Quality function deployment.
Qual Prog19:39–50
2. Chan L-K, Wu M-L (2002) Quality function
deployment: a literature review. Eur J Oper Res
143:463–497
3. Cohen L (1995) Quality function deployment:
how to make QFDwork for you. Addison-Wesley,
New York