SMIL 3.0 Language Specification, Last-Call Version

This document specifies the third version of the Synchronized Multimedia Integration Language (SMIL, pronounced "smile"). SMIL 3.0 has the following design goals: * Define an XML-based language that allows authors to write interactive multimedia presentations. Using SMIL, an author can describe the temporal behaviour of a multimedia presentation, associate hyperlinks with media objects and describe the layout of the presentation on a screen. * Allow reusing of SMIL syntax and semantics in other XML-based languages, in particular those who need to represent timing and synchronization. For example, SMIL components are used for integrating timing into XHTML [XHTML10] and into SVG [SVG]. * Extend the functionalities contained in the SMIL 2.1 [SMIL21] into new or revised SMIL 3.0 modules. * Define new SMIL 3.0 Profiles incorporating features useful within the industry.