It\'s a research work for KU course ADS 740

1. Design Problem in Chinese Input
for Mobile Devices
ADS 740 Special Problems in Design
Yujie Guo (Torry)

2. Content
• Why‐ background info
• What‐ the current design and the problem
• How‐ future

3. why this project
• The Hme before 3G
– Carriers: what’s their aLtude?
• SMS plans as strategy
• Benefits
• Desktop applicaHon

4. why this project
• The Hme before 3G
– Carriers: what’s their aLtude?
• FeHon‐ the IM+SMS
No I never use
It saves money
the input is faster
the interface is more friendly
the keyboard is beVer
I don’t like switch from computer to phone
when I use computer.

5. why this project
• The Hme before 3G
– Users: why they using text message so much?
1000+
500‐1000
300‐499
100‐299
50‐99
under 50
The amount of short messages you send per month?

6. why this project
• The Hme before 3G
– Users: How’s current input methods?
Very saHsfied
Good
Just so so
unsaHsfied
Are you saHsfied with the input method?

7. why this project
• The Hme before 3G
– Carriers
– Users
– Manufactories: why they developed so many input
methods?
• More than 1,000 ways
• 90% market share from foreign companies, where 50%
from T9, a US company

8. why this project
• The coming of 3G
– Why it’s important and what to do next

9. The current design and the problems
• The design Process
– Challenges
– Research: HCI research in China
– Implement balance
– TesHng

10. The current design and the problems
• The design Process
• The design
– Keyboard input
• Pinyin
• Stroke
– HandwriHng input
– Voice input

11. The current design and the problems
• The design
Pinyin
Stock
Cang jie
Hand wriHng
Voice input
The input method you use most:

12. Keyboard input
• Popular keyboard input methods

13. Keyboard input
A demo of pinyin input A demo of stroke input

14. Handwriting input
• The input order is
important

15. Voice input
• Demo of applicaHon •

16. The current design and the problems
• The design Process
• The design
• The problems
– Norman’s 6 points framework
• Conceptual model
• Affordances
• Mapping
• Feedback
• Visibility
• Constraints

17. Keyboard input – ABC/English
• Mapping

18. Keyboard input ‐Pinyin
• Mapping

19. Keyboard input ‐Pinyin
• An example of
improved Pinyin input
by opHmizing the
mapping process:
intelligent word input
• Depend on the
capability of the word
library

20. Keyboard input ‐ Stroke
• Mapping

21. Keyboard input ‐ Stroke
• An example of
improved stroke
input by opHmizing
the mapping
process
• Depend on the
capability of
Character library

22. Voice input
• Affordances
• Constraints
• The challenge is the
local accents
– Memory
– Library
– Response Hme

23. HandwriHng input
• Feedback
– The order
• Visibility
– Cursive wriHng

24. The future
• Coming standard
– The standard of Chinese input in Mobile phone
would carry out by Department Ministry of
InformaHon Industry.
– This informaHon was from newspaper of 2006,
February.

25. The future
• Coming standard
• Product ideas
accurate handwriHng input
accurate voice input
easy‐operaHng copy‐paste funcHon.
word scan funcHon
customize words and phrases
auto arrange most common used words
magnanimous word library
If the following new technologies are applied to Chinese input
methods, which do you like to try most?

26. The future
• Coming standard
• Product ideas
• InnovaHon points
– Analyze the current problems
• Keyboard: Mapping
• Voice: Affordances, constraints
• HandwriHng: Feedback, visibility

27. Examples of improved keyboard input

28. Examples of improved keyboard
The Quantai Electronic The O2 Xda Atom Exec send out The G‐tech Bluetooth wireless
company has a keyboard this keyboard as a gin for buying keyboard can be folded as
product, which is more the phone. The size is similar cloth. It is because it designed
specific. The BK600 with the phone and set as a by using cloth, expect the
Bluetooth wireless foldable standard keyboard. Meanwhile, baVery box. This keyboard
keyboard support Palm, some shortcut keys are added on weight 68g and the baVery
Symbian, Win CE these 3 the top, such as rotate screen, can stay for 20 hours
OS. It only weights 200g inbox mail and calendar. But this conHnuous working. It
and a hand size. 2 AA keyboard doesn’t support the supports most PDA and smart
baVeries would provide a pinyin symbols which may cause phone device. (Such as
long‐Hme use. At the back some difficulty when using Symbian, Windows Mobile
of the keyboard, there’s a Pingyin input methods. OS), and if you don’t use it,
stand that can be placed on you can just fold it up and put
a phone. away.

29. Examples of improved handwriHng
No more touch pen needed Touch pad improvement

30. Data and the survey used
35+
30‐34
Male
25‐29 Female
20‐24
0 5 10 15 20 25