Christopher Power

Publications (17)0 Total impact

• Conference Proceeding: Developing a semantic user and device modeling framework that supports UI adaptability of web 2.0 applications for people with special needs

  Philip Ackermann, Carlos A Velasco, Christopher Power
  Proceedings of the International Cross-Disciplinary Conference on Web Accessibility, Lyon, France; 01/2012
• Conference Proceeding: Remote Evaluation of WCAG 2.0 Techniques by Web Users with Visual Disabilities.

  Christopher Power, Helen Petrie, André Pimenta Freire, David Swallow
  Universal Access in Human-Computer Interaction. Design for All and eInclusion - 6th International Conference, UAHCI 2011, Held as Part of HCI International 2011, Orlando, FL, USA, July 9-14, 2011, Proceedings, Part I; 01/2011
• Source

  Available from: Mohd Kamal Othman

  Conference Proceeding: Engaging Visitors in Museums with Technology: Scales for the Measurement of Visitor and Multimedia Guide Experience.

  Mohd Kamal Othman, Helen Petrie, Christopher Power
  Human-Computer Interaction - INTERACT 2011 - 13th IFIP TC 13 International Conference, Lisbon, Portugal, September 5-9, 2011, Proceedings, Part IV; 01/2011
• Chapter: Accessibility of Blended and E-Learning for Mature Age and Disabled Students and Staff: Introduction to the Special Thematic Session

  Helen Petrie, Christopher Power, Carlos A. Velasco, Jesus G. Boticario
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  ABSTRACT: Blended learning, the use of a combination of face-to-face and distance learning techniques, is becoming very common in all educational sectors. Almost all educational institutions now use websites to communicate with students, provide them with learning resources and, increasingly, allow students and staff to collaborate with each other. Many institutions use their own websites, others use virtual learning environments (VLEs) or learning management systems (LMSs). The transition of institutions to all learning being through electronic channels, or e-learning, is also becoming increasingly prevalent, particularly in the higher and further education domains. Even in primary and secondary school systems, the integration of virtual classrooms, multimedia resources and electronic whiteboards have further blurred the lines between the virtual and the physical world.
  06/2010: pages 484-485;
• Conference Proceeding: Virtual Learning Environments: Another Barrier to Blended and E-Learning.

  Christopher Power, Helen Petrie, Vasily Sakharov, David Swallow
  Computers Helping People with Special Needs, 12th International Conference, ICCHP 2010, Vienna, Austria, July 14-16, 2010. Proceedings, Part I; 01/2010
• Conference Proceeding: Understanding and Supporting the Needs of Educational Professionals Working with Students with Disabilities and Mature Age Students.

  David Swallow, Helen Petrie, Christopher Power
  Computers Helping People with Special Needs, 12th International Conference, ICCHP 2010, Vienna, Austria, July 14-16, 2010. Proceedings, Part I; 01/2010
• Conference Proceeding: An Experience Report in Requirements Elicitation for Accessible E-Learning Systems.

  Christopher Power, Helen Petrie
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  ABSTRACT: This is a report regarding the experiences of a requirements gathering and management effort for online services in education environments for people with disabilities. It details the challenges that were encountered in managing both the elicited data and the derived requirements from a diverse group of users, as well as the online wiki solution that was used to address them.
  15th IEEE International Conference on Engineering of Complex Computer Systems, ICECCS 2010, Oxford, United Kingdom, 22-26 March 2010; 01/2010
• Source

  Available from: Helen Petrie

  Conference Proceeding: Who supports the support workers? E-learning for support workers of students with disabilities.

  Christopher Power, Helen Petrie, David Swallow
  ICTA 2009 - The Second International Conference on Information and Communication Technologies and Accessibility, Hammamet, Tunisia, May 7-9, 2009, Proceeding; 01/2009
• Conference Proceeding: A Framework for Remote User Evaluation of Accessibility and Usability of Websites.

  Christopher Power, Helen Petrie, Richard Mitchell
  Universal Access in Human-Computer Interaction. Addressing Diversity, 5th International Conference, UAHCI 2009, Held as Part of HCI International 2009, San Diego, CA, USA, July 19-24, 2009. Proceedings, Part I; 01/2009
• Article: Integrating Accessibility Evaluation into Web Engineering Processes.

  Christopher Power, André Pimenta Freire, Helen Petrie
  IJITWE. 01/2009; 4:54-77.
• Conference Proceeding: Web Accessibility Metrics: Effects of Different Computational Approaches.

  André Pimenta Freire, Christopher Power, Helen Petrie, Eduardo H. Tanaka, Heloisa V. Rocha, Renata Pontin de Mattos Fortes
  Universal Access in Human-Computer Interaction. Applications and Services, 5th International Conference, UAHCI 2009, Held as Part of HCI International 2009, San Diego, CA, USA, July 19-24, 2009. Proceedings, Part III; 01/2009
• Conference Proceeding: Innovations in measuring accessibility: theoretical and practical perspectives.

  Helen Petrie, Christopher Power, Ray Adams, Faustina Hwang, Gerhard Weber, Jenny S. Darzentas, Carlos A. Velasco
  Proceedings of the 22nd British HCI Group Annual Conference on HCI 2008: People and Computers XXII: Culture, Creativity, Interaction - Volume 2, BCS HCI 2008, Liverpool, United Kingdom, 1-5 September 2008; 01/2008
• Conference Proceeding: Web Accessibility - Automatic/Manual Evaluation and Authoring Tools.

  Helen Petrie, Christopher Power, Gerhard Weber
  Computers Helping People with Special Needs, 11th International Conference, ICCHP 2008, Linz, Austria, July 9-11, 2008. Proceedings; 01/2008
• Source

  Available from: Helen Petrie

  Conference Proceeding: Determining Accessibility Needs Through User Goals.

  Kevin Carey, Rosaria Gracia, Christopher Power, Helen Petrie, Stefan Carmien
  Universal Access in Human Computer Interaction. Coping with Diversity, 4th International Conference on Universal Access in Human-Computer Interaction, UAHCI 2007, Held as Part of HCI International 2007, Beijing, China, July 22-27, 2007, Proceedings, Part I; 01/2007
• Source

  Available from: Helen Petrie

  Conference Proceeding: Accessibility in non-professional web authoring tools: a missed web 2.0 opportunity?

  Christopher Power, Helen Petrie
  Proceedings of the 2007 International Cross-Disciplinary Conference on Web Accessibility (W4A 2007), Banff, Canada, May 7-8, 2007; 01/2007
• Conference Proceeding: Voronoi diagrams, vectors and the visually impaired.

  Christopher Power, Dawn Gill, Mark Daley
  Extended Abstracts Proceedings of the 2006 Conference on Human Factors in Computing Systems, CHI 2006, Montréal, Québec, Canada, April 22-27, 2006; 01/2006
• Source

  Available from: Helen Petrie

  Chapter: Navigational Consistency in Websites: What Does it Mean to Users?

  Helen Petrie, George Papadofragkakis, Christopher Power, David Swallow
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  ABSTRACT: A study was conducted to investigate the effects of navigational inconsistencies in websites on users’ perceptions and performance. Of four inconsistencies manipulated (position of navigational bar, order of elements in navigational bar, font type and size of elements), only the position of the bar had a substantial effect. However this affected both users’ perception of their performance and their actual performance, in terms of the time spent on webpages. The mean time spent on the page with the inconsistently positioned navigational bar more than doubled and this effect persisted over subsequent pages. The methodology developed provides a useful way of investigating the effects of navigational inconsistency, an under-studied phenomenon.
  01/1970: pages 423-427;