RESEARCH

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Funded Projects

Research Interests

My primary research interest can be described as HCI for people with special needs. Specifically, my research focuses in three main areas:
  1. Developing a series of theories to predict how older persons and people with disabilities interact with computers and their applications (including the Internet)-and developing artefacts to validate those theories/models.
  2. Developing theory-driven systems that alleviate functional limitations experienced by young children, older persons, people with disabilities, and people in extraordinary circumstance (e.g., people whose first language is not English needing to access English websites).
  3. Evaluating existing or designed artefacts with people with special needs (in a controlled experiment or in context) to observe usability problems, and user behaviour and attitude, for the purpose of gaining a truer and deeper understanding of the problems experienced by these people.

Publications

Or find publications arranged by: year of publication | research topic

Note: Click the underlined titles to download a pdf version of the articles. Some of them only link to a DOI number so you might need subscription to the relevant digital libraries

    Publications in major conferences and journals

    IEEE, IJHCS, IwC, IJHCI, IJRR, Gerontechnology journals

  1. Kurniawan, S.H. Older People and Mobile Phone: A Multi-Method Investigation. International Journal of Human-Computer Studies, A. Oulasvirta and S. Brewster (Eds.) Special Issue on Mobility 66, 2008, 889-901.
  2. Kurniawan, S.H., Evans, D.G. King, A., Blenkhorn, P. Personalizing Web Page Presentation for Older People. Interacting with Computers 18, 2006, 457-477.
  3. Sutcliffe, A.G., Kurniawan, S.H., Shin, J. Methods and Tools for Designing Attractive Multimedia User Interfaces. International Journal of Human-Computer Studies 64, 2006, 375-392.
  4. Evans, D.G., Diggle, T., Kurniawan, S.H., Blenkhorn, P.L. An investigation into formatting and lay out errors produced by blind word-processor users and an evaluation of prototype error prevention and correction techniques. IEEE Transactions on Neural Systems and Rehabilitation Engineering 11(3), 2003, 257-268.
  5. Blenkhorn, P., Evans, D.G. King, A., Kurniawan, S.H., Sutcliffe, A.G. Screen Magnifiers: Architecture, Evolution and Evaluation. IEEE Computer Graphics and Applications special issue: Multimodal Interfaces, September/October 2003, 54-61.
  6. Kurniawan, S.H., Sutcliffe, A.G., Blenkhorn, P.L., Shin, J. Investigating the Usability of a Screen Reader and Mental Models of Blind Users in the Windows Environment. International Journal of Rehabilitation Research 26(2), 2003, 145-148. Lippincott Williams & Wilkins, Philadelphia, USA.
  7. Kurniawan, S.H., Zaphiris, P., Ellis, R.D. Older and Younger Adults' Time and Errors in Expandable and Sequential Hierarchies. Gerontechnology 2(2), 2002, 203-205. HoLaPress Science, Valkenswaard, the Netherlands.
  8. Ellis, R.D., Kurniawan, S.H. Increasing the usability of online information for older users: A case study in participatory design. International Journal of Human-Computer Interaction, 12(2), 2000, 263-276. Lawrence Erlbaum, Mahwah, USA.

    ACM and IFIP Conferences (e.g., CHI, INTERACT, ASSETS)

  9. Allman, T., Dhillon, R. K., Landau, M. A., and Kurniawan, S. H. 2009. Rock Vibe: Rock Band® computer games for people with no or limited vision. In Proceeding of the 11th international ACM SIGACCESS Conference on Computers and Accessibility (ASSETS '09). pp. 51-58. ACM Press.
  10. Arteaga, S., Chevalier, J., Coile, A., Hill, A. W., Sali, S., Sudhakhrisnan, S., and Kurniawan, S. H. Low-cost accelerometry-based posture monitoring system for stroke survivors. In Proceedings of the 10th international ACM SIGACCESS Conference on Computers and Accessibility (ASSETS 2008), pp. 243-244. ACM Press.
  11. Jomhari, N., Gonzalez, V., and Kurniawan, S. Telling my Baby's Stories: Family Communication and Narrative Practices of Young Mothers Living Abroad. In Proceedings of OZCHI 2008, pp. 311-314. ACM Press.
  12. Kurniawan, S.H. Older Women and Digital TV: A Case Study. Proceedings of ASSETS'07, Tempe, AZ, 23-27 October 2007, pp. 251-252.
  13. Mahmud, M., Sporka, A.J, Kurniawan, S.H., Slavik, P. A Comparative Longitudinal Study of Non-Verbal Mouse Pointer. Proceedings of INTERACT'07, Rio de Janeiro, Brazil, 10-14 September 2007, pp. 489-502.
  14. Sporka, A.J, Kurniawan, S.H., Mahmud, M., Slavik, P. Longitudinal Study of Continuous Non-Speech Operated Mouse Pointer. CHI '07 Extended Abstracts, San Jose, CA, USA, April 28 - May 03, 2007, pp. 2669 - 2674.
  15. Cao, X., Kurniawan, S.H. Designing Mobile Phone Interface with Children. CHI '07 Extended Abstracts, San Jose, CA, USA, April 28 - May 03, 2007, pp. 2309-2314.
  16. Sporka, A.J, Kurniawan, S.H., Mahmud, M., Slavik, P. Non-speech Input and Speech Recognition for Real-time Control of Computer Games. Proceedings of ASSETS'06, Portland, USA, 23-25 October 2006, pp.213-220.
  17. Sa-nga-ngam, P, Kurniawan, S.H. A Three-Countries Case Study of Older People's Browsing. Proceedings of ASSETS'06, Portland, USA, 23-25 October 2006, pp. 223-224.
  18. Kurniawan, S.H. An Exploratory Study of How Older Women Use Mobile Phones. Proceedings of UbiComp'06, Orange County, CA, USA, 17-21 September 2006, pp. 105-122.
  19. Kurniawan, S.H., Mahmud, M, Nugroho, Y. A Study of the Use of Mobile Phones by Older Persons. Extended Abstracts of CHI'06, Montreal, QC, Canada, 22-27 April 2006, pp. 989-994.
  20. Kurniawan, S., Zaphiris, P. Research-Derived Web Design Guidelines for Older People. Proceedings of Seventh International ACM SIGACCESS Conference on Computers and Accessibility 2005 (ASSETS'05), pp. 129-135.
  21. Kurniawan, S.H., Sutcliffe, A.G., Blenkhorn, P.L. How Blind Users' Mental Models Affect Their Perceived Usability of an Unfamiliar Screen Reader. In M. Rauterberg, M. Menozzi, J. Wesson (Eds.) Human-Computer Interaction (Proceedings of INTERACT'03. Zurich, Switzerland, 1-5 September 2003). IOS Press, Amsterdam, the Netherlands, pp. 631-638.
  22. Kurniawan, S.H., King, A., Evans, D.G., Blenkhorn, P.L. Design and User Evaluation of a Joystick-Operated Full-Screen Magnifier. Proceedings of CHI'03. ACM Press, Ft. Lauderdale, 5-10 Apr 2003, pp. 25-32.
  23. Kurniawan, S.H., Ellis, R.D. A Structural Equation Modeling of Internet Bookmark Organization. Extended Abstract of CHI 2001 Conference on Human Factors in Computing Systems. Seattle, USA, 31 Mar-5 April 2001, pp. 173-174.
  24. Zaphiris, P., Kurniawan, S.H. Senior-Centered Design of Health Information Architecture. Extended Abstract of CHI 2001 Conference on Human Factors in Computing Systems. Seattle, USA, 31 Mar-5 April 2001, pp. 465-466.
  25. Kurniawan, S.H. A rule of thumb of icons' visual distinctiveness. Proceedings of the Conference on Universal Usability (CUU'00). Arlington, VA, USA, 22-23 Nov 2000, pp. 159-160.
  26. HFES, GSA conferences

  27. Kurniawan, S.H., Zaphiris, P., Ellis, R.D. Comparing older and younger adults traversal time in expandable and non-expandable hierarchical structures. Proceedings of Human Factors and Ergonomics Society 46th Annual Meeting. Baltimore, USA, 29 Sept- 4 Oct 2002, pp. 185-188.
  28. Kurniawan, S.H., Zaphiris, P. Usability and Accessibility Comparison of Governmental, Organizational, Educational and Commercial Aging/Health Related Web Sites. Proceedings of the 45th Annual Meeting of the Human Factors and Ergonomics Society [CD-ROM], Minneapolis, MN, USA, October 8-12, 2001, pp. 206-210.
  29. Kurniawan, S.H., Ellis, R.D., Allaire, J.C. The Impact of Age, Web Self-Efficacy, and Web Experience on Bookmark Usage. Poster presented at the Annual Scientific Meeting of the Gerontological Society of America. Washington, DC, Nov 17-21, 2000.
  30. Kurniawan, S.H., Allaire, J.C., Ellis, R.D. Defining the Relationships Between Web Ability, Age, and Web Experience Across the Adult Life Span. Proceedings of Human Factors and Ergonomics Society 43rd Annual Meeting [CD-ROM]. Houston, TX, 27 Sept-1 Oct 1999, pp. 1387.
  31. Ellis, R.D., Kurniawan, S.H. A Review and Annotated Bibliography of Research on Computers and Aging. Presented at the 51st Annual Scientific Meeting of the Gerontological Society of America. Philadelphia, USA, 18-22 Nov 1998.
  32. Kurniawan, S.H., Shih, H.O.M & Goonetilleke, R.S. Defining the effect of the languages and modalities of computer icons for Chinese users. Proceedings of Human Factors and Ergonomics Society 43rd Annual Meeting [CD-ROM]. Houston, TX, 27 Sept-1 Oct 1999.

    Other Publications

    Journals, Book Chapters and Magazine Articles

  33. Kurniawan, S.H. Age-Related Differences in the Interface Design Process. In C. Stephanidis (Ed.) The Universal Access Handbook, 2009, Chapter 8, pp. 1-12. CRC Press.
  34. Kurniawan, S.H. Ageing. In S. Harper, Y. Yezilada (Eds.) Web Accessibility: A Foundation for Research, 2008, Chapter 4, 47-58. Springer Verlaag.
  35. Kurniawan, S. Mobile phone design for older persons. Interactions 14, 4 (Jul. 2007), 24-25. ACM Press.
  36. Sa-nga-ngam, P., Kurniawan, S.H. An Investigation into Older People's Browsing Activities. Psychnology 4(3), 2006, 245-265.
  37. Kurniawan, S.H., Conroy, G.V. Comparing Comprehension Speeds and Accuracy of Online Information in Students with and without Dyslexia. Advances in Universal Web Design and Evaluation: Research, Trends and Opportunities. Idea Group, Inc., 2007, 257-270.
  38. Zaphiris, P., Kurniawan, S.H., Ghiawadwala, M. A Systematic Approach to the Development of Research-Based Web Design Guidelines for Older People. Universal Access in the Information Society, 6(1), 2007, 59-75.
  39. Kurniawan, S.H., Sporka, A., Nemec, V., Slavik, P. On Design and User Evaluation of a Spatial Audio Rendering System for Blind Users. International Journal on Disability and Human Development, Special Issue on Disability, Virtual Reality and Rehabilitation, 4(4), 2005, 317-324.
  40. Sporka, A., Kurniawan, S.H., Slavik, P. Acoustic Control of Mouse Pointer. Universal Access in the Information Society 4, 2006, 237-245.
  41. Zaphiris, P., Kurniawan, S.H. Challenges and Opportunities of Computer-Based Learning for Senior Citizens. Encyclopedia of International Computer Based Learning, 2005.
  42. Kurniawan, S.H., Zaphiris, P. Web Health Information Architecture for Older Adults. In B. Shneiderman, J. Lazar, M. Ivory (Eds.) IT and Online Society, Special Issue on Web Navigation, pp. 42-63. Available at: http://www.stanford.edu/group/siqss/itandsociety/v01i03/v01i03a04.pdf.
  43. Kurniawan, S.H., Ellis, R.D., Allaire, J.C. The Impact of Age, Web Self-Efficacy, and Web Experience on Bookmark Manipulation. Universal Access in the Information Society 1(3), 2002, 207-216. Morgan Kaufmann, Heidelberg, Germany.
  44. Zaphiris, P., Kurniawan, S.H. Usability and Accessibility Comparison of Governmental, Organizational, Educational and Commercial Aging/Health-Related Web Sites. WebNet Journal: Internet Technologies, Applications, Issues, 3(3), 2001, 45-52. AACE Press, Norfolk, USA.
  45. Zaphiris, P., Kurniawan, S.H. Ellis, R.D. Usability and Accessibility Comparison of Governmental, Organizational, Educational and Commercial Aging/Health-Related Web Sites. Journal of Research Practice in Information Technology, 2001.
  46. Conferences

  47. Hullett, K., Kurniawan, S.H., Wardrip-Fruin, N. Better Game Studies Education the Carcassonne Way. Proceedings of the Digital Games Research Association 2009. Brunel University, London. September 2009.
  48. Jomhari, N., Gonzales, V.M. See the Apple of My Eye: Baby Storytelling in Social Space. People and Computers XXIII – Celebrating people and technology (Proceedings of 23rd BCS conference on Human-Computer Interaction), pp. 238-243.
  49. Gonzalez, V.M., Kurniawan, S.H. On new media for intergenerational communication: The case of Geriatric1927. In Proceedings of 2008 IEEE International Symposium on Technology and Society (ISTAS 08), 2008, pp.1-4. IEEE.
  50. Hamnasaki, M., Eto, K., Watanabe, K., Kurniawan, S., Nishimura, T. Automatic Citation Visualization for Collaborative Content Creation and Sharing Platform. Demonstration at Computer Supported Cooperative Work, Nov 8-12, 2008. San Diego, CA.
  51. Sa-nga-ngam, P., Kurniawan, S.H. An Investigation into Older Persons' Browser Usage. Proceedings of HCII'07, Beijing, China, July 22-27, Vol 5.
  52. Sa-nga-ngam, P., Kurniawan, S.H. A Comparative Study of Thai and UK Older Web Browsers. Proceedings of HCII'07, Beijing, China, July 22-27, Vol 10.
  53. Sporka, A.J., Kurniawan, S.H., Slavik, P. Non-speech Operated Emulation of Keyboard. Proceedings of the 3rd Cambridge Workshop on Universal Access and Assistive Technology (CWUAAT'06), pp. 145-154. Cambridge, UK.
  54. Mahmud, M., Kurniawan, S.H. Involving Psychometric Tests for Input Device Evaluation for Older People. Proceedings of Annual Conference of the Australian Computer-Human Interaction Special Interest Group 2005 (OZCHI'05).
  55. Sporka, A., Kurniawan, S.H., Slavik, P., Mahmud, M. Tonal Control of Mouse Cursor: A Usability Study with The Elderly. Proceedings of HCII'05. Las Vegas, USA, 25-27 July 2005), 2005 (CD-ROM).
  56. Mahmud, M., Kurniawan, S.H. Incorporating User Ability Test in Evaluating Pointing Devices. Proceedings of HCII'05. Las Vegas, USA, 25-27 July 2005), 2005 (CD-ROM).
  57. Kurniawan, S.H., Sporka, A.J., Nemec, V., Slavik, P. Design and Evaluation of Computer-Simulated Spatial Sound. Proceedings of the 2nd Cambridge Workshop on Universal Access and Assistive Technology (CWUAAT'04), 2004, pp. 137-146.
  58. Sporka, A., Kurniawan, S.H., Slavik, P. Whistling User Interface (U3I). Proceedings of the 8th ERCIM Workshop: "User Interfaces for All" (UI4ALL'04). Vienna, Austria, June 2004.
  59. Kurniawan, S.H., Sporka, A., Nemec, V., Slavik, P. Design and User Evaluation of a Spatial Audio System for Blind Users. Proceedings of the 5th International Conference Series on Disability, Virtual Reality and Associated Technologies (ICDVRAT'04), pp. 175-182. Oxford, UK, September 2004.
  60. Kurniawan, S.H., Sutcliffe, A.G. Evaluating the Usability of A Screen Reader with Blind Users. In C. Stephanidis (Ed.) Universal Access in HCI (Proceedings of HCII'03. Crete, Greece 24-27 June 2003), 2003, 1295-1299. Lawrence Erlbaum, Mahwah, USA.
  61. Evans, D.G., Kurniawan, S.H., King, A., Blenkhorn, P.L. Evaluating the Usability of Joystick Control of a Screen Magnifier with Visually Impaired Users. In C. Stephanidis (Ed.) Universal Access in HCI (Proceedings of HCII'03. Crete, Greece 24-27 June 2003), 2003, 201-205. Lawrence Erlbaum, Mahwah, USA.
  62. Evans, G., Kurniawan, S.H., Blenkhorn, P. Document Format and Layout for Blind People: Problems and Possible Solutions. In Craddock, McCormack, Rielly & Knops (Eds.), Assistive Technology- Shaping the Future (Proceedings of 7th European Conference for the Advancement of Assistive Technology (AAATE), Dublin, Ireland, 31 Aug-3 Sept 2003), pp 456- 460.
  63. Evans, G., Kurniawan, S.H., Blenkhorn, P. SpeakOUT: A Tool for People with Modest Print Impairments. In Craddock, McCormack, Rielly & Knops (Eds.), Assistive Technology- Shaping the Future (Proceedings of 7th European Conference for the Advancement of Assistive Technology (AAATE), Dublin, Ireland, 31 Aug-3 Sept 2003), pp 441- 445.
  64. Kurniawan, S.H., Evans, G., Blenkhorn, P. Approaches to Web Access for Older People. Presented at the Workshop on Web and Aging, HCII'03. Crete, Greece 24-27 June 2003.
  65. Zaphiris, P., Kurniawan, S.H., Ellis, R.D. Age related differences and the Depth vs. Breadth trade-off in hierarchical online information systems. Lecture Notes in Computer Science: Universal Access: Theoretical Perspectives, Practice, and Experience (Proceedings of 7th ERCIM Workshop 'User Interfaces for All', Paris, 23-25 Oct 2002), 2003, 2615, pp. 23-42. Springer Verlag, Heidelberg, Germany.
  66. Kurniawan, S.H., Zaphiris, P., Ellis, R.D. Age-Related Differences in Subjective Ratings of Hierarchical Information. In C. Stephanidis (Ed.) Universal Access in HCI (Proceedings of HCII'03. Crete, Greece 24-27 June 2003), 2003, 857-861. Lawrence Erlbaum, Mahwah, USA.
  67. Zaphiris, P., Kurniawan, S.H., Ellis, R.D. Mathematical Formulation of Age Related Differences in Mouse Movement Tasks. In C. Stephanidis (Ed.) Universal Access in HCI (Proceedings of HCII'03. Crete, Greece 24-27 June 2003), 2003, 917-921. Lawrence Erlbaum, Mahwah, USA.
  68. Zaphiris, P., Kurniawan, S.H., Ellis, R.D. Age related differences and the Depth vs. Breadth trade-off in hierarchical online information systems. Lecture Notes in Computer Science (Proceedings of 7th ERCIM Workshop 'User Interfaces for All'), 2615, 2003, pp. 303-314. Springer Verlag, Heidelberg, Germany.
  69. Kurniawan, S.H., Blenkhorn, P. Adopting a Reactive Approach to Develop a Technological solution for Older Adults. Paper presented at the British HCI Workshop on 'A new research agenda for older adults', London, 3rd Sept 2002.
  70. Zaphiris, P., Kurniawan, S.H., Quantitative Models for Older Adults' Hierarchical Structure Browsing. Paper presented at the British HCI Workshop on 'A new research agenda for older adults', London, 3rd Sept 2002.
  71. Kurniawan, S.H., Sutcliffe, A.G. Mental Models of Blind Users in Windows Environment. Lecture Notes in Computer Science (the Proceedings of 8th International Conference on Computers Helping People with Special Needs), 2398, 2002, 568-574. Springer Verlag, Heidelberg, Germany.
  72. Kurniawan, S.H. How Accessible are Web Information Resources for Students with Disabilities? Lecture Notes in Computer Science (the Proceedings of 8th International Conference on Computers Helping People with Special Needs). 2398, 2002, 756-757. Springer Verlag, Heidelberg, Germany.
  73. Diggle, T., Kurniawan, S.H., Evans, G., Blenkhorn, P. An Analysis of Layout Errors in Word Processed Documents Produced by Blind People. Lecture Notes in Computer Science (the Proceedings of 8th International Conference on Computers Helping People with Special Needs) 2398, 2002, 587-588. Springer Verlag, Heidelberg, Germany.
  74. Kurniawan, S.H., King, A., Evans, G., Blenkhorn, P. A Usability Evaluation of a Joystick-Operated Full-Screen Magnifier. Lecture Notes in Computer Science (Proceedings of 7th ERCIM Workshop 'User Interfaces for All'), 2615, 2003, 375-386. Springer Verlag, Heidelberg, Germany.
  75. King, A., Kurniawan, S.H., Evans, G., Blenkhorn, P. The Design and Evaluation of a Joystick Operated Screen Magnifier. Paper presented at the British HCI Workshop on 'A new research agenda for older adults', London, 3rd Sept 2002.
  76. Kurniawan, S.H., Ellis, R.D. Comparing the Elderly Users' Usability Ratings, Automatic Usability and Automatic Accessibility Evaluations of Elderly-Nominated Web Sites. Poster presented at the 1st International Conference Human Factors & the Web: Designing and Evaluating for the Web. Nice, France 16-19 Mar 2001.
  77. Kurniawan, S.H., Zaphiris, P. Investigating Computer Screen and Paper Reading Speed Differences. Proceedings of WebNet 2001: World Conference on the WWW and Internet [CD-ROM]. Orlando, USA, 23-27 Oct, pp.
  78. Kurniawan, S.H., Zaphiris, P. Reading Online or on Paper: Which is Faster? Abridged Proceedings of the 9th International Conference on Human Computer Interaction, 2001, 220-222. August 5-10, New Orleans, LA.
  79. Kurniawan, S.H., Zaphiris, P., Ellis, R.D. Involving Seniors in Designing Information Architecture for the Web. In C. Stephanidis (Ed.) Universal Access in HCI, 2001, 496-500. Lawrence Erlbaum, Mahwah, USA.
  80. Zaphiris, P., Kurniawan, S.H. Usability and Accessibility of Aging/Health-Related Websites. Abridged Proceedings of the 9th International Conference on Human Computer Interaction, 2001, 34-36. August 5-10, New Orleans, LA.
  81. Zaphiris, P., Kurniawan, S.H. User-centered web based information architecture for senior citizens. Proceedings of Panhellenic Conference with International Participation on HCI, Rio Patras, Greece, Dec 7-9, 2001, pp. 293-298.
  82. Kurniawan, S.H. Online Information Resources for Students with Disabilities: How Accessible Are They? Proceedings of WebNet 2001: World Conference on the WWW and Internet [CD-ROM]. Orlando, USA, 23-27 Oct 2001.
  83. Kurniawan, S.H., & Zaphiris, P. Investigating the Age Effects on Subjective Assessments of Traffic Signs. Proceedings of the IIE Annual Conference, May 20-23, 2001, Dallas, TX.
  84. Kurniawan, S.H., Shih, H.O.M & Goonetilleke, R.S. (2001) Involving Chinese Users in Analyzing the Effects of Languages and Modalities on Computer Icons. In C. Stephanidis (Ed.), Universal Access in HCI, 2001, 491-495. Lawrence Erlbaum, Mahwah, USA.
  85. Kurniawan, S.H., Allaire, J.C, Ellis, R.D. Modelling Computer Users' Interest in the World Wide Web across the Adult Life Span: The Role of Age, Education, Ability, and Discontentment. Proceedings of WebNet 2000: World Conference on the WWW and Internet [CD-ROM]. San Antonio, USA, 31 Oct-3 Nov 2000, pp. 744-746.
  86. Kurniawan, S.H. Merged Structural Equation Model of Online Retailer's Customer Preference and Stickiness. Proceedings of WebNet 2000: World Conference on the WWW and Internet [CD-ROM]. San Antonio, USA, 31 Oct-3 Nov 2000.
  87. Kurniawan, S.H. Modeling Online Retailer Customer Preference and Stickiness: A Mediated Structural Equation Model. Proceedings of PACIS 2000: Fourth Pacific Asia Conference on Information Systems: Electronic Commerce and Web-based Information Systems, Hong Kong, China, 1-3 June 2000, pp. 238-258.
  88. Book Reviews

  89. Kurniawan, S.H. Review of: Interaction Design-Beyond Human-Computer Interaction by Jennifer Preece, Yvonne Rogers and Helen Sharp. UAIS 3:289, 2004..
  90. Kurniawan, S.H. Review of: Interaction Design-Beyond Human-Computer Interaction by Jennifer Preece, Yvonne Rogers and Helen Sharp. SigCHI Bulletin, March/April 2003.
  91. Kurniawan, S.H., & Zaphiris, P. Review of: Usability for the Web: Designing Web Sites that Work by Tom Brinck, Darren Gergle and Scott D. Wood. SigCHI Bulletin 2002, July/August, 11.