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