Basic HTML version of Foils prepared April 4 1999

Foil 69 What is Universal Acccess / Cross Disability Rendering?

From The Document Object Model - Universal Access - Other Objects - CORBA XML Jini JavaScript etc. Tango Seminar to DoD Modernization MSRC -- April 6 1999. by Geoffrey C. Fox


1 This implies choosing a rendering method that best suits client user and respects
  • Any hardware constraints -- network bandwidth or screen resolution or client performance
  • Any sensory or physical limitations of user
2 e.g. Visually impaired would prefer audio rich rendering
3 e.g. Muscularly limited users would need appropriate interfaces
4 New Cascading Style Sheets can express this but need intelligent renderer to make correct decision and allow user to adjust choices
5 Further one needs decision at the stage of XML input and not after it has already been rendered into HTML
  • HTML expresses "meaning of document" by positioning and other means which are in general impossible to recognize and render in a cross disability fashion
6 Assume goal is equal and high quality rendering -- do not downgrade material to support cross disability rendering

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