document: Multimedia meets computer graphics in SMIL2 .0 : a time model for the web Multimedia scheduling models provide a rich variety of tools for managing the synchronization of media like video and audio , but generally have an inflexible model for time itself . In contrast , modern animation models in the computer graphics community generally lack tools for synchronization and structural time , but allow for a flexible concept of time , including variable pacing , acceleration and deceleration and other tools useful for controlling and adapting animation behaviors . Multimedia authors have been forced to choose one set of features over the others , limiting the range of presentations they can create . Some programming models addressed some of these problems , but provided no declarative means for authors and authoring tools to leverage the functionality . This paper describes a new model incorporated into SMIL 2.0 that combines the strengths of scheduling models with the flexible time manipulations of animation models . The implications of this integration are discussed with respect to scheduling and structured time , drawing upon experience with SMIL 2.0 timing and synchronization , and the integration with XHTML .
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