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Operation Management 2Group Report
Select Best Tablet PC in the world
Team MemberGoshi Fujimoto /201247529Nobuya Yoshizwa / 201047532Shigenori Kobayashi /201247513
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?
Approaches
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
1. Compose objectives
2. Identify fundamental objectives• Categorize and extract fundamental objectives from a
wish list to create the hierarchy of fundamental objectives
Show friendsBring to cafe
Not make my eyes tired
3-1. Apply the attributes
iPad iPad Mini Galaxy Kindle Fire Nexus Xperia Tables
Thinkpad Tablet2
Price yen/unit 41500 28800 29800 12800 22982 36161 68183
OS iOS iOS Android Android Android Android Windows8
Processor A6X 2 core 1.0GHx
A5X 2 core 1.0GHx
APQ8060 DC 1.5GHz
OMAP4430 1.2GHz
Tegra3 1.3GHz
Tegra3 1.3GHz
Atom Z27860 1.8GHz
LCD quality IPS IPS TFT IPS IPS TFT IPS
LCD Resolution pic 2048 x 1536 1024 x 764 1280 x 800 1024 x 600 1280 x 800 1280 x 800 1366 x 768LCD Size Inch 9.7 7.9 10.1 7 7 9.4 10.1Storage Size GB 16 16 16 8 16 16 64Weight g 652 308 565 400 340 570 570Battery Life hr 10 10 8 8.5 10 10 10Wi-Fi 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.
BluetoothBluetoot
h1.0-4.0
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
The above product specification are captured from product catalog. Price information is from “kakaku.com”, as of Jan 5th 2013.
3-2. Apply the attributes
Catalog Spec Attributes Measurement standard
Measurement scale
Reference source
Price yen/unit Price yen/unit Lower is better kakaku.com
Design DesignAppearance,
Quality of material
Higher is better5-1 kakaku.com
Team member
OS Process Speed Enable to operate without
frustrationFast –Slow
5-1kakaku.com
Team memberProcessor xx GHz
LCD quality TFT/OLED
LCD Quality
Quality of Display
including resolution,
color
Higher is better5-1
kakaku.comTeam memberLCD Resolution pic
LCD Size Inch
Portability
Body Size and Weight
Length of battery life
Higher is better5-1
kakaku.comTeam member
Weight g
Battery Life hr
Wi-Fi IEEE802.11
User Friendly interface
Easy to operate, easy to input data, easy to set up
wireless environment.
Higher is easier5-1
kakaku.comTeam member
Bluetooth Bluetooth1.0-4.0
Camera resolution(Head)
resolution
Camera Resolution(Tale)
resolution
Converting Product spec to measurable attribute
4. Construct the consequences table
iPad iPad Mini Galaxy Kindle Fire Nexus Xperia
TablesThinkpa
d Tablet2
Price yen/unit 41500 28800 29800 12800 22982 36161 68183Design Good-
Bad: 5-1 4.7 4.9 4.5 5 4.3 4.8 4.4Process Speed
Fast –Slow5-1
5 5 5 4 3 3 4User 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
5.Ways to make the decision
•How to eliminate alternatives•Even swap
•How to make the rational decision•AHP
5-1. Eliminate Alternatives iPad iPad Mini Galaxy Kindle
Fire Nexus Xperia Tables
Thinkpad Tablet2
Price yen/unit 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 –Slow5-1
5 5 5 4 3 4.2 4User 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 byKindle fire
5-2. Structure Hierarchy Tree Best Tablet PC
Price Design ProcessSpeed
User Friendly Interface
Portability
LCDQuality
iPad Mini Galaxy Kindle Fire
XperiaTablet
5-3. Develop Pairwise Comparison
iPad Mini Kindle Fire Galaxy XperiaiPad Mini 1 1 3 2Kindle Fire 1 1 3 2Galaxy 1/ 3 1/ 3 1 1/ 3Xperia 1/ 2 1/ 2 3 1
Design
iPad Mini Kindle Fire Galaxy XperiaiPad Mini 1 3 1 5Kindle Fire 1/ 3 1 1/ 3 2Galaxy 1 3 1 1/ 5Xperia 1/ 5 1/ 5 1/ 2 1
Process Speed
iPad Mini Kindle Fire Galaxy XperiaiPad Mini 1 1/ 7 1 3Kindle Fire 7 1 5 9Galaxy 1 1/ 5 1 5Xperia 1/ 3 1/ 9 1/ 5 1
PriceiPad Mini Kindle Fire Galaxy Xperia
iPad Mini 1 3 1 5Kindle Fire 1/ 3 1 1/ 3 2Galaxy 1 3 1 1/ 5Xperia 1/ 5 1/ 5 1/ 2 1
Process Speed
iPad Mini Kindle Fire Galaxy XperiaiPad Mini 1 1/ 3 3 2Kindle Fire 3 1 5 4Galaxy 1/ 3 1/ 5 1 1/ 3Xperia 1/ 2 1/ 4 1/ 3 1
User Friendly Interface
iPad Mini Kindle Fire Galaxy XperiaiPad Mini 1 1/ 3 3 2Kindle Fire 3 1 5 4Galaxy 1/ 3 1/ 5 1 1/ 3Xperia 1/ 2 1/ 4 3 1
Portability
5-4. Develop Reference Vector
Citeria Price Design Process Speed User Friendly Interface Portability LCD QualityPrice 1 5 4 3 3 7Design 1/ 5 1 1/ 3 1/ 6 1/ 6 2Process Speed 1/ 4 3 1 1/ 3 1/ 5 4User Friendly Interface 1/ 3 6 3 1 1/ 3 5Portability 1/ 3 6 5 3 1 6LCD Quality 1/ 7 1/ 2 1/ 4 1/ 5 1/ 6 1
5-5. Calculate a Consistency Ratio
1 5 4 3 3 71/ 5 1 1/ 3 1/ 6 1/ 6 21/ 4 3 1 1/ 3 1/ 5 41/ 3 6 3 1 1/ 3 51/ 3 6 5 3 1 61/ 7 1/ 2 1/ 4 1/ 5 1/ 6 1
0.3759430.0492430.0946970.1743030.27163
0.034184
2.57800.29870.58561.14061.89390.2163
(1)Pairwise comparison matrix for the criteria
(2)Preference vector
(3)
x =
6.857526.065606.183666.543976.972356.32800
(3)/(2)
CI=0.098370382CI/RI=0.079330953 > 0.10
Degree of consistency is satisfactory
Our Conclusion
The Best of Best buy Tablet is…
Our Conclusion
Ranking ScoreiPad Mini 0.274463Kindle Fire 0.289825Galaxy 0.111858Xperia 0.062664