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