York HCI

Research & Publications

Curriculum Vitae

My CV is available for download in accessible PDF.

Research Statement:

My research centres on the creation of technologies that are usable, accessible and acceptable to everyone through good requirements and evaluation methods. I have worked with a variety of commercial and public sector organizations in domains such as e-learning and e-government in both research projects and private consultancy.

I am the primary investigator for the University of York on the new Inclusive Future - Internet Web Services project, which is developing new tools for creating accessible Web 2.0 content.

Research Interests:

• Core Research Areas
  The following are core research problems that I am actively pursuing.
  • Measurement of accessibility/usability criteria
  • Evaluation techniques for interactive systems
  • User requirements elicitation and management
• Application Domains
  The following are key application domains in which I am interested in exploring the above research themes.
  • Cultural Heritage and History
  • Personal Home Technology
  • Participatory Web Environments (Web 2.0)
  • Health Informatics

Selected Publications:

Journal Publications

• Power, Christopher, & Jurgensen, Helmut. (2010). Accessible presentation of information for people with visual disabilities. Universal Access in the Information Society, 9, 97-119.
• Paige, Richard, Drivalos, Nikolaos, Kolovos, Dimitrios, Fernandes, Kiran, Power, Christopher, Olsen, Goran, & Zschaler, Steffen. (2010). Rigorous identification and encoding of trace-links in model-driven engineering. Software and Systems Modeling, 1-19.
• Brooke, Phillip J., Paige, Richard F., & Power, Christopher. (2010). Document-centric xml workflows with fragment digital signatures. Software Practice and Experience, 40, 655--672. doi: http://dx.doi.org/10.1002/spe.v40:8
• Power, Christopher, Freire, André Pimenta, & Petrie, Helen. (2009). Integrating accessibility evaluation into web engineering processes. International Journal of Information Technology and Web Engineering (IJITWE), 4(4), 54-77.

Conference Publications

• Power, C., Freire, A., Petrie, H. (2012). Guidelines are only half the story: Accessibility problems encountered by blind web users. In ACM Conference on Human Factors in Computing (ACM CHI) 2012 (full paper, to appear)
• Petrie, H., Power, C. (2012). What do users really care about? A comparison of usability problems found by users and experts on highly interactive websites. In ACM Conference on Human Factors in Computing (ACM CHI) 2012 (full paper, to appear)
• Petrie, H., Power, C., Cairns, P. and Senelar, C. (2011) Using card sorts for understanding website information architectures: technological, methodological and cultural issues, In Proceedings of the 13th IFIP TC 13 international conference on Human-computer interaction - Volume Part IV (INTERACT'11), Pedro Campos, Nuno Nunes, Nicholas Graham, Joaquim Jorge, and Philippe Palanque (Eds.), Vol. Part IV. Springer-Verlag, Berlin, Heidelberg, 309-322.
• Othman, M., Petrie, H., Power, C. (2011) Engaging Visitors in Museums with technology: scales for the measurement of visitor and multimedia experience, In Proceedings of the 13th IFIP TC 13 international conference on Human-computer interaction - Volume Part IV (INTERACT'11), Pedro Campos, Nuno Nunes, Nicholas Graham, Joaquim Jorge, and Philippe Palanque (Eds.), Vol. Part IV. Springer-Verlag, Berlin, Heidelberg, 92-99.
• Power, C., Petrie, H., Freire, A. and Swallow, D. (2011). Remote evaluation of WCAG 2.0 techniques by web users with visual disabilities. In Proceedings of the 6th international conference on Universal access in human-computer interaction: design for all and eInclusion - Volume Part I (UAHCI'11), Constantine Stephanidis (Ed.), Vol. Part I. Springer-Verlag, Berlin, Heidelberg, 285-294.
• Swallow, David, Petrie, Helen, & Power, Christopher. (2010). Understanding and supporting the needs of educational professionals working with students with disabilities and mature age students. Paper presented at the Proceedings of the 12th international conference on Computers helping people with special needs: Part I, Berlin, Heidelberg. http://portal.acm.org/citation.cfm?id=1886667.1886757
• Power, Christopher, Petrie, Helen, Sakharov, Vasily, & Swallow, David. (2010). Virtual learning environments: Another barrier to blended and e-learning. Paper presented at the Proceedings of the 12th international conference on Computers helping people with special needs: Part I, Berlin, Heidelberg. http://portal.acm.org/citation.cfm?id=1886667.1886762
• Power, Christopher, & Petrie, Helen. (2010). An experience report in requirements elicitation for accessible e-learning systems. Paper presented at the Proceedings of the 2010 15th IEEE International Conference on Engineering of Complex Computer Systems, Washington, DC, USA. http://dx.doi.org/10.1109/ICECCS.2010.11
• Petrie, Helen, Power, Christopher, Velasco, Carlos A., & Boticario, Jesus G. (2010). Accessibility of blended and e-learning for mature age and disabled students and staff: Introduction to the special thematic session. Paper presented at the Proceedings of the 12th international conference on Computers helping people with special needs: Part I, Berlin, Heidelberg. http://portal.acm.org/citation.cfm?id=1886667.1886756
• Othman, Kamal, Petrie, Helen, & Power, Christopher. (2010). Understanding visitors' experiences with multimedia guides in cultural spaces. Paper presented at the Proceedings of Transforming Culture in the Digital Age (International Conference in Tartu, April 14 -- 16), Tartu, Estonia.
• Power, Christopher, Petrie, Helen, & Swallow, David. (2009). Who supports the support workers? E-learning for support workers of students with disabilities. Paper presented at the ICTA 2009 - Proceedings of the Second International Conference on Information and Communication Technologies and Accessibility, Hammamet,Tunisia, May 7-9, 2009.
• Power, Christopher, Petrie, Helen, & Mitchell, Richard. (2009). A framework for remote user evaluation of accessibility and usability of websites. Paper presented at the Proceedings of the 5th International Conference on Universal Access in Human-Computer Interaction. Addressing Diversity. Part I: Held as Part of HCI International 2009, Berlin, Heidelberg. http://dx.doi.org/10.1007/978-3-642-02707-9_67
• Power, Christopher, & Paige, Richard. (2009). Content personalization for inclusive education through model-driven engineering. Paper presented at the Proceedings of the 5th International Conference on Universal Access in Human-Computer Interaction. Part III: Applications and Services, Berlin, Heidelberg. http://dx.doi.org/10.1007/978-3-642-02713-0_11
• Petrie, Helen, Power, Christopher, & Song, Wei. (2009). Internationalization and localization of websites: Navigation in English language and Chinese language sites. Paper presented at the Proceedings of the 3rd International Conference on Internationalization, Design and Global Development: Held as Part of HCI International 2009, Berlin, Heidelberg. http://dx.doi.org/10.1007/978-3-642-02767-3_33
• Petrie, Helen, Papadofragkakis, George, Power, Christopher, & Swallow, David. (2009). Navigational consistency in websites: What does it mean to users? Paper presented at the Proceedings of the 12th IFIP TC 13 International Conference on Human-Computer Interaction: Part I, Berlin, Heidelberg. http://dx.doi.org/10.1007/978-3-642-03655-2_46
• Freire, Andre P., Power, Christopher, Petrie, Helen, Tanaka, Eduardo H., Rocha, Heloisa V., & Fortes, Renata P. (2009). Web accessibility metrics: Effects of different computational approaches. Paper presented at the Proceedings of the 5th International Conference on Universal Access in Human-Computer Interaction. Part III: Applications and Services, Berlin, Heidelberg. http://dx.doi.org/10.1007/978-3-642-02713-0_70
• Sannia, Monia, Petrie, Helene, Power, Christopher, & Swallow, David. (2008). Supporting the support workers: Training and supporting support workers for students with disabilities through e-learning, online resources and communication. Paper presented at the In Proceedings of Conference on Interactive Computer Aided Learning (ICL 2008).
• Power, Christopher, McQuillan, Ian, Petrie, Helen, Kennaugh, Peter, Daley, Mark, & Wozniak, Geoff. (2008). No going back: An interactive visualization application for trailblazing on the web. Paper presented at the Proceedings of the 2008 12th International Conference Information Visualisation, Washington, DC, USA. http://portal.acm.org/citation.cfm?id=1439280.1440135

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