Device independent text input: a rationale and an example

ABSTRACT

Individual characters and text are the main inputs in many computing devices. Currently there is a growing trend in developing small portable devices like mobile phones, personal digital assistants, GPS-navigators, and two-way pagers. Unfortunately these portable computing devices have different user interfaces and therefore the task of text input takes many forms. The user, who in the future is likely to have several of these devices, has to learn several text input methods. We argue that there is a need for a universal text input method. A method like this would work on a wide range of interface technologies and allow the user to transfer his or her writing skill without device-specific training. To show that device independent text input is possible, we present a candidate for a device independent text entry method that supports skill transfer between different devices. A limited longitudinal study was conducted to achieve a proof of concept evaluation of our Minimal Device Independent Text Input Method (MDITIM). We found MDITIM writing skill acquired with a touchpad to work almost equally well on mouse, trackball, joystick and keyboard without any additional training. Our test group reached on average 41% of their handwriting speed by the end of the tenth 30-minute training session.

REFERENCES

• 1: 3Com Corporation / Palm Computing. Graffiti. http:/~alm.3 com.corr~/products/input/index.html
• 2: Bellman, T. and MacKenzie, I. S. A probabilistic character layout strategy for mobile text entry. Proceedings of Graphics Interface '98, Canadian Information Processing Society, 1998, 168-176.
• 3: Brewster, S. Providing a Structural Method for Integrating Non-Speech Audio lnto Human-Computer Interfaces. Ph.D. dissertation, University of York, UK, 1994.
• 4: Stuart K. Card , Allen Newell , Thomas P. Moran, The Psychology of Human-Computer Interaction, Lawrence Erlbaum Associates, Inc., Mahwah, NJ, 1983
• 5: Cassingham, R.C. The Dvorak Keyboard. Freelance Communications, 1986.
• 6: Thomas T. Cormen , Charles E. Leiserson , Ronald L. Rivest, Introduction to algorithms, MIT Press, Cambridge, MA, 1990
• 7: Clive Frankish , Richard Hull , Pam Morgan, Recognition accuracy and user acceptance of pen interfaces, Proceedings of the SIGCHI conference on Human factors in computing systems, p.503-510, May 07-11, 1995, Denver, Colorado, United States [doi>10.1145/223904.223972]
• 8: Gaver, W. Auditory icons: using sound in computer interfaces. Human-Computer Interaction, 2, 1986, 167- 177.
• 9: David Goldberg , Cate Richardson, Touch-typing with a stylus, Proceedings of the SIGCHI conference on Human factors in computing systems, p.80-87, April 24-29, 1993, Amsterdam, The Netherlands [doi>10.1145/169059.169093]
• 10: Gopher, D. and Raij, D. Typing on a two-handed chord keyboard: will QWERTY become obsolete? IEEE Transactions on Systems, Man, and Cybernetics, 18, 1988, 601-609.
• 11: Robert G. Hughes , A. Robin Forrest, Perceptualisation using a tactile mouse, Proceedings of the 7th conference on Visualization '96, p.181-ff., October 28-29, 1996, San Francisco, California, United States
• 12: Gordon Kurtenbach , William Buxton, The limits of expert performance using hierarchic marking menus, Proceedings of the SIGCHI conference on Human factors in computing systems, p.482-487, April 24-29, 1993, Amsterdam, The Netherlands [doi>10.1145/169059.169426]
• 13: I. Scott MacKenzie , Shawn X. Zhang, The design and evaluation of a high-performance soft keyboard, Proceedings of the SIGCHI conference on Human factors in computing systems: the CHI is the limit, p.25-31, May 15-20, 1999, Pittsburgh, Pennsylvania, United States [doi>10.1145/302979.302983]
• 14: MacKenzie, I. S., Zhang, S. X. and Soukoreff, R. W. ext entry using soft keyboards. Behaviour & Information Technology, 18 (4), 1999, 235-244.
• 15: I. Scott MacKenzie , Aleks Oniszczak, A comparison of three selection techniques for touchpads, Proceedings of the SIGCHI conference on Human factors in computing systems, p.336-343, April 18-23, 1998, Los Angeles, California, United States [doi>10.1145/274644.274691]
• 16: MacKenzie, I.S., Chang, L. A performance comparison of two handwriting recognizers. Interacting with Computers, i 1, 1999, 283-297.
• 17: I. Scott MacKenzie , Abigail Sellen , William A. S. Buxton, A comparison of input devices in element pointing and dragging tasks, Proceedings of the SIGCHI conference on Human factors in computing systems: Reaching through technology, p.161-166, April 27-May 02, 1991, New Orleans, Louisiana, United States [doi>10.1145/108844.108868]
• 18: Jennifer Mankoff , Gregory D. Abowd, Cirrin: a word-level unistroke keyboard for pen input, Proceedings of the 11th annual ACM symposium on User interface software and technology, p.213-214, November 01-04, 1998, San Francisco, California, United States [doi>10.1145/288392.288611]
• 19: Mayzner, M.S. and Tresselt, M.E. Tables of single-letter and digram frequency counts for various word-length and letter-position combination. Psychonomic Monograph Supplements, 1, 1965, 13-32.
• 20: Ken Perlin, Quikwriting: continuous stylus-based text entry, Proceedings of the 11th annual ACM symposium on User interface software and technology, p.215-216, November 01-04, 1998, San Francisco, California, United States [doi>10.1145/288392.288613]
• 21: Alexander I. Rudnicky , Alexander G. Hauptmann , Kai-Fu Lee, Survey of current speech technology, Communications of the ACM, v.37 n.3, p.52-57, March 1994 [doi>10.1145/175247.175252]
• 22: Soukoreff, R.W. and MacKenzie, I.S. Theoretical upper and lower bounds on typing speed using a stylus and soft keyboard. Behaviour and Information Technology, 14 (6), 1995, 370-379.
• 23: C. C. Tappert , C. Y. Suen , T. Wakahara, The State of the Art in Online Handwriting Recognition, IEEE Transactions on Pattern Analysis and Machine Intelligence, v.12 n.8, p.787-808, August 1990 [doi>10.1109/34.57669]
• 24: Tegic Communications, Inc. T9 text input. http ://www.tegic. com.
• 25: Dan Venolia , Forrest Neiberg, T-Cube: a fast, self-disclosing pen-based alphabet, Proceedings of the SIGCHI conference on Human factors in computing systems: celebrating interdependence, p.265-270, April 24-28, 1994, Boston, Massachusetts, United States [doi>10.1145/191666.191761]

INDEX TERMS

Primary Classification:
  I. Computing Methodologies
  I.7 DOCUMENT AND TEXT PROCESSING

Additional Classification:
  H. Information Systems
  H.5 INFORMATION INTERFACES AND PRESENTATION (I.7)
      H.5.2 User Interfaces (D.2.2, H.1.2, I.3.6)
          Subjects: Input devices and strategies (e.g., mouse, touchscreen)

  I. Computing Methodologies
  I.3 COMPUTER GRAPHICS
      I.3.6 Methodology and Techniques
          Subjects: Interaction techniques

General Terms:
Design, Documentation, Experimentation, Human Factors, Management, Measurement, Performance, Reliability, Theory

Keywords:
MDITIM, device independence, minimalism, portable devices, text input, unistrokes