ABSTRACT
With the growth of script-intensive web pages, particularly those using AJAX technology, the adaptation of Web content to match the needs and capabilities of individual users has become increasingly problematic. New versions of well-known websites, including for example Google Suggest, which is an AJAX driven variant of their standard search page, are now largely opaque to screen reading technology such as Jaws. Taken together with the trend to surf the Web on small hand-held devices, which causes its own accessibility problems, a new approach to expressing heavily scripted content is needed. This research returns to first principals, and considers the underlying Dexter Model of Hypertext, and how that may be placed within a broader model of document content that is amenable to adaptation of content to user needs either through configuration, or through dynamic self-adaptation. The model proposed considers a document in terms of five individual abstractions: content, inventory, semantics, navigation, and adaptation. A simple (fully working) example, taken from a small fragment of Google Maps, is presented to demonstrate how such a model may operate in practice, adapting between two different user profiles on demand.
- Halasz, F. and Schwaertz M., The Dexter hypertext reference model, In Communications of the ACM vol 37, issue 2, pp 30--39, ACM, 1994. Google ScholarDigital Library
- Freedom Scientific Inc product catalogue, 2008, http://www.freedomscientific.comGoogle Scholar
- W3C, HTML 5 Working Draft 22 January 2008, http://www.w3.org/TR/html5/Google Scholar
- W3C, The XMLHttpRequest Object Working Draft 26 October 2007 http://www.w3.org/TR/XMLHttpRequest/Google Scholar
- Google Inc, Google Suggest Website http://www.google.com/webhp?complete=1&hl=en Viewed 18 January 2008Google Scholar
- Hardman L. et al, The Amsterdam hypermedia model: adding time and context to the Dexter model, In Communications of the ACM vol 37, issue 2, pp 50--62, ACM, 1994 Google ScholarDigital Library
- W3C, Synchronized Multimedia, http://www.w3.org/AudioVideo/Viewed 18 January 2008Google Scholar
- W3C, Synchronized Multimedia, Appendix B http://www.w3.org/AudioVideo/Viewed 18 January 2008Google Scholar
- W3C, XForms specification version 1.0, 2006. http://www.w3.org/TR/2006/REC-xforms-20060314/Google Scholar
- ISO, ISO Prolog Standard ISO/IEC 13211-1:1995Google Scholar
- W3C, Extensible Markup Language (XML), Fourth Edition http://www.w3.org/TR/REC-xml/Google Scholar
- Svanaes D. and Verplank W., In search of metaphors for tangible user interfaces, In Proceedings of DARE 2000 on Designing augmented reality environments, ACM 2000. Google ScholarDigital Library
- Mellor S. J. and Balcer M. J., Executable UML: a foundation for model-driven architecture, Addison-Wesley, Reading, MA, 2002. Google ScholarDigital Library
- Widgit Software, The Widgit Symbols Development Project, http://www.widgit.com/widgitrebus/Viewed 4 February 2008Google Scholar
- Google Inc, Google Maps website, http://maps.google.com/ Viewed 4 February 2008Google Scholar
- Sun Microsystems Inc, FreeTTS http://freetts.sourceforge.net/docs/index.php Viewed 4 February 2008Google Scholar
- Sun Microsystems Inc, Java Speech API http://java.sun.com/products/java-media/speech/ Viewed 4 February 2008Google Scholar
- Nesbitt K. V., Modeling the Multi-Sensory Design Space, In Australian symposium on Information visualization, - Volume 9 (CRPITS'01), Australian Computer Society, 2001 Google ScholarDigital Library
Index Terms
- The CISNA model of accessible adaptive hypermedia
Recommendations
Adaptive Hypermedia
Adaptive hypermedia is a relatively new direction of research on the crossroads of hypermedia and user modeling. Adaptive hypermedia systems build a model of the goals, preferences and knowledge of each individual user, and use this model throughout the ...
Comments