Generating presentation constraints from rhetorical structure

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Abstract
Hypermedia structured in terms of the higher-level intent of its author can be adapted to a wider variety of final presentations. Many multimedia systems encode such level intent as constraints on either time, spatial layout or navigation. Once specified, these constraints are translated into specific presentations whose timelines, screen displays and navigational structure satisfy these constraints. This ensures that the desired spatial, temporal and navigation properties are maintained no matter how the presentation is adapted to varying circumstances. Rhetorical structure defines author intent at a still higher level. Authoring at this level requires that rhetorics can be translated to final presentations that properly reflect them. This paper explores how rhetorical structure can be translated into constraints, which are then translated into final presentations. This enables authoring in terms of rhetorics and provides the assurance that the rhetorics will remain properly conveyed in all presentation adaptation.

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