1. Operation Management 2
Group Report
Select Best Tablet PC in the world
Team Member
Goshi Fujimoto /201247529
Nobuya Yoshizwa / 201047532
Shigenori Kobayashi /201247513

2. Objectives
• Select best of the best Tablet PC from the market
• Each Tablet PC has pros and cons
• How do we select the best one?
Size?
Price?
Portability?
Battery life?
Spec?

3. Approaches

4. 1. Compose objectives
• What is tablet PC?
• Clearly different from the laptop
• Need different objectives for tablet PC
• What are needs for tablet PC?
Make a wish list

5. 1. Compose objectives

6. 2. Identify fundamental objectives
•
Categorize and extract fundamental objectives from a wish
list to create the hierarchy of fundamental objectives
Not make my eyes
tired
Show friends
Bring to cafe

7. 3-1. Apply the attributes
iPad
iPad Mini
Galaxy
Kindle Fire
Nexus
Xperia Tables
Thinkpad
Tablet2
41500
28800
29800
12800
22982
36161
68183
iOS
iOS
Android
Android
Android
Android
Windows8
A6X 2 core
1.0GHx
A5X 2 core
1.0GHx
APQ8060 DC
1.5GHz
OMAP4430
1.2GHz
IPS
IPS
TFT
IPS
IPS
TFT
IPS
pic
2048 x 1536
1024 x 764
1280 x 800
1024 x 600
1280 x 800
1280 x 800
1366 x 768
Inch
9.7
7.9
10.1
7
7
9.4
10.1
GB
16
16
16
8
16
16
64
g
652
308
565
400
340
570
570
hr
10
10
8
8.5
10
10
10
IEEE802.11
a. b. g. n.
a. b. g. n.
b. g. n.
a. b. g. n.
b. g. n.
a. b. g. n.
a. b. g. n.
Bluetooth
Bluetooth
1.0-4.0
4.0
4.0
3.0
n/a
3.0
3.0
4.0
Camera resolution
(Head)
resolution
5M
5M
3.2M
n/a
1.2M
8.0M
8.0M
Camera Resolution
(Tale)
resolution
1.2M
1.2M
2.2M
n/a
n/a
1M
2.0M
Price
yen/unit
OS
Processor
LCD quality
LCD Resolution
LCD Size
Storage Size
Weight
Battery Life
Wi-Fi
The above product specification are captured from product catalog.
Price information is from “kakaku.com”, as of Jan 5th 2013.
Tegra3 1.3GHz Tegra3 1.3GHz
Atom Z27860
1.8GHz

8. 3-2. Apply the attributes
Converting Product spec to measurable attribute
Attributes
Price
yen/unit
Design
OS
Processor
LCD quality
LCD Resolution
LCD Size
Weight
Battery Life
Wi-Fi
Measurement
standard
Price
yen/unit
Design
Catalog Spec
Appearance,
Quality of material
Process Speed
xx GHz
TFT/OLED
LCD Quality
pic
Inch
g
Portability
hr
Measurement scale Reference source
Lower is better
Higher is better
5-1
kakaku.com
kakaku.com
Team member
Enable to operate
without frustration
Fast –Slow
5-1
kakaku.com
Team member
Quality of Display
including
resolution, color
Higher is better
5-1
kakaku.com
Team member
Higher is better
5-1
kakaku.com
Team member
Higher is easier
5-1
kakaku.com
Team member
Body Size and
Weight
Length of battery
life
IEEE802.11
Bluetooth
Bluetooth
1.0-4.0
Camera resolution
(Head)
resolution
Camera Resolution
(Tale)
resolution
User Friendly
interface
Easy to operate,
easy to input data,
easy to set up
wireless
environment.

9. 4. Construct the consequences table
iPad
Price
yen/unit
iPad Mini
Galaxy
Kindle Fire
Nexus
Xperia
Tables
Thinkpad
Tablet2
41500
28800
29800
12800
22982
36161
68183
Design
Good-Bad:
5-1
4.7
4.9
4.5
5
4.3
4.8
4.4
Process Speed
Fast –Slow
5-1
5
5
5
4
3
3
4
User Friendly
Interface
Good-Bad:
5-1
3.8
4.6
3.7
5
4.1
4.2
4.3
Portability
Good-Bad:
5-1
3.4
4.8
4.1
5
4.6
4.6
3.6
LCD Quality
Good-Bad:
5-1
5
5
4.2
5
4.5
4.5
3.6

10. 5.Ways to make the decision
• How to eliminate alternatives
• Even swap
• How to make the rational decision
• AHP

11. 5-1. Eliminate Alternatives
iPad
Price
yen/unit
iPad Mini
Galaxy
Kindle Fire
Nexus
Xperia
Tables
Thinkpad
Tablet2
41500
28800
29800
12800
22982
36161
68183
Design
Good-Bad:
5-1
4.7
4.9
4.5
5
4.3
4.8
4.4
Process Speed
Fast –Slow
5-1
5
5
5
4
3
4.2
4
User Friendly
Interface
Good-Bad:
5-1
3.8
4.6
3.7
4.5
4.1
4.5
4.3
Portability
Good-Bad:
5-1
3.4
4.8
4.1
5
4.6
4.6
3.6
LCD Quality
Good-Bad:
5-1
5
5
4.2
4.5
4.5
4.5
3.6
Dominated by
iPod Mini
Dominated by
Kindle fire
Dominated by
Kindle fire

12. 5-2. Structure Hierarchy Tree
Best Tablet PC
Price
Design
iPad Mini
Process
Speed
Galaxy
User Friendly
Interface
Kindle Fire
Portability
Xperia
Tablet
LCD
Quality

13. 5-3. Develop Pairwise Comparison
iPa d Min i
Kin dle Fire
Ga lax y
Xpe ria
Pric e
iPa d Min i Kin dle Fire Ga lax y
Xpe ria
1
1/ 7
1
7
1
5
1
1/ 5
1
1/ 3
1/ 9
1/ 5
iPa d Min i
Kin dle Fire
Ga la x y
Xpe ria
De s ign
iPa d Min i Kin dle Fire Ga la x y
1
1
3
1
1
3
1/ 3
1/ 3
1
1/ 2
1/ 2
3
3
9
5
1
Pro c e s s Spe e d
iPa d Min i Kin dle Fire Ga la x y
Xpe ria
iPa d Min i
1
3
1
5
Kin dle Fire
1/ 3
1
1/ 3
2
Ga la x y
1
3
1
1/ 5
Xpe ria
1/ 5
1/ 5
1/ 2
1
2
2
1/ 3
1
Us e r Frie n dly I t e rf a c e
n
iPa d Min i Kin dle Fire Ga la x y
Xpe ria
iPa d Min i
1
1/ 3
3
2
Kin dle Fire
3
1
5
4
Ga la x y
1/ 3
1/ 5
1
1/ 3
Xpe ria
1/ 2
1/ 4
1/ 3
1
Xpe ria
Pro c e s s Spe e d
iPa d Min i Kin dle Fire Ga la x y
Xpe ria
iPa d Min i
1
3
1
5
Kin dle Fire
1/ 3
1
1/ 3
2
Ga la x y
1
3
1
1/ 5
Xpe ria
1/ 5
1/ 5
1/ 2
1
Po rt a bilit y
iPa d Min i Kin dle Fire Ga la x y
iPa d Min i
1
1/ 3
3
Kin dle Fire
3
1
5
Ga la x y
1/ 3
1/ 5
1
Xpe ria
1/ 2
1/ 4
3
Xpe ria
2
4
1/ 3
1

14. 5-4. Develop Reference Vector
Cit e ria
Pric e
De s ign
Proc e s s Spe e d
Us e r Frie ndly Inte rfac e
Portabilit y
LCD Quality
Pric e
De s ign Proc e s s Spe e d Us e r Frie ndly Inte rfac e Portability LCD Quality
1
5
4
3
3
7
1/5 1
1/3
1/6
1/6
2
1/4 3
1
1/3
1/5
4
1/3
6
3
1
1/3
5
1/3 6
5
3
1
6
1/7
1/2
1/4
1/5
1/6
1

15. 5-5. Calculate a Consistency Ratio
(2)Preference vector
(1)Pairwise comparison matrix for the criteria
1
1/ 5
1/ 4
1/ 3
1/ 3
1/ 7
(3)/(2)
6.85752
6.06560
6.1 8366
6.54397
6.97235
6.32800
5
1
3
6
6
4
3
1/ 3
1
3
5
1/ 2
3
1/ 6
1/ 3
1
3
1/ 4
1/ 6
1/ 5
1/ 3
1
1/ 5
1/ 6
7
2
4
5
6
1
x
0.375943
0.049243
0.094697
0.1 74303
0.271 63
0.0341 84
(3)
=
2.5780
0.2987
0.5856
1 .1 406
1 .8939
0.21 63
CI=0.098370382
CI/RI=0.079330953 > 0.10
Degree of consistency is satisfactory

16. Our Conclusion
The Best of Best buy Tablet is…

17. Our Conclusion

18. Ranking
iPad Mini
Kindle Fire
Galaxy
Xperia
Score
0.274463
0.289825
0.111858
0.062664