Chinese input method
- 1. Design Problem in Chinese Input for Mobile Devices ADS 740 Special Problems in Design, by Yujie Guo (Torry) Professor Michael Eckersley Fall semester 2009
- 2. Content • Why this project • What is the current design and the problem • How is the future
- 3. why this project • The Mme before 3G – Users: they use text message so much… The amount of short messages you send per month? 1000+ 500‐1000 300‐499 100‐299 50‐99 under 50
- 4. why this project • The Mme before 3G – Users: How’s current input methods? Are you saMsfied with the input method? Very saMsfied Good Just so so unsaMsfied
- 5. why this project • The Mme before 3G – 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
- 6. why this project • The Mme before 3G – Carriers: what’s their a^tude? • SMS plans as strategy • Benefits • Desktop applicaMon soluMon
- 7. why this project • The Mme before 3G – Carriers: PC applicaMon=IM+SMS to improve the experience No I never use It saves money the input is faster the interface is more friendly the keyboard is becer I don’t like switch from computer to phone when I use computer.
- 8. why this project • The coming of 3G – More applicaMon needs text input, input speed could be the stumbling store of communicaMon – User group may changed, a wider age scale challenges the current methods
- 9. The current design and the problems • The design Process of Chinese input – Challenges • Hardware & sofware constrains • Language complexity – Research: HCI research in China • The studied group and regional differences • Real‐life pracMce and academic knowledge – Implement balance • “Engineer first” moco – TesMng • Constrains and limitaMon
- 10. The current design and the problems • Input differences between different device puzzled user Keyboard Method difference difference Word lib difference Character lib difference
- 11. The current design and the problems • The design Process • The design – Keyboard input Pinyin • Pinyin Stock • Stock Cang jie Hand wriMng – HandwriMng input Voice input – Voice input
- 13. Keyboard input A demo of pinyin input • By input the English lecer, certain mapping to the character will then display. • Use direcMon arrows to choose the correct character or word
- 14. Keyboard input A demo of stock input • The lecers on keyboard were mapped to stock of the character • By input right order of stock will input the character • Even same stocks, different order refer to different character
- 15. Handwriting input • You can write on screen and the system “guess” the thing you tend to input
- 17. 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
- 18. The current design and the problems • The main problems of keyboard input: – Mapping – Physical constraints • The main problems of voice input – Affordances – Cultural constraints • The main problems of handwriMng input – Visibility – feedback
- 21. Keyboard input ‐Pinyin • An example of improved Pinyin input by opMmizing the mapping process: intelligent word input • Depend on the capability of the word library
- 23. Keyboard input ‐ Stroke • An example of improved stroke input by opMmizing the mapping process • Depend on the capability of Character library
- 24. Voice input • Affordances • Constraints • The challenge is the local accents – Memory – Library – Response Mme
- 25. HandwriMng input • Visibility – Cursive wriMng – The size of the pad – Character lib • Feedback – The input order is important wrong order to write a character will not be recognized in some devices
- 26. The future • Coming standard – The standard of Chinese input in Mobile phone would carry out by Department Ministry of InformaMon Industry. – By then, every one want to get a piece of the market should follow the standard. – This informaMon was from newspaper of 2006, February.
- 27. The future • Coming standard • Product ideas accurate handwriMng input accurate voice input easy‐operaMng copy‐paste funcMon. word scan funcMon 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?
- 28. The future • Coming standard • Product ideas • InnovaMon points – Analyze the current problems • Keyboard: Mapping, constraints • Voice: Affordances, constraints • HandwriMng: Feedback, visibility
- 30. Examples of improved keyboard The BK600 Bluetooth The O2 Xda Atom Exec send The G‐tech Bluetooth wireless foldable out this keyboard as a gif wireless keyboard can be keyboard support Palm, for buying the phone. The folded as cloth. It is Symbian, Win CE these size is similar with the phone because it designed by 3 OS. It only weights and set as a standard using cloth, expect the 200g and a hand size. 2 keyboard. Meanwhile, some bacery box. This keyboard AA baceries would shortcut keys are added on weight 68g and the provide a long‐Mme use. the top, such as rotate bacery can stay for 20 At the back of the screen, inbox mail and hours conMnuous keyboard, there’s a calendar. working. It supports most stand that can be placed PDA and smart phone on a phone. device.
- 31. Examples of improved handwriMng No more touch pen needed Touch pad improvement
- 32. Appendix A Data and the survey used 35+ 30‐34 Male 25‐29 Female 20‐24 0 5 10 15 20 25