| 摘要 |
A presentation application provides for authoring and playback of a presentation. A presentation is an interactive collection of activities. An activity may include one or more frames, wherein each frame includes one or more modules. A module may consist of media content such as video, text, images or other content. A user may provide input during playback of the presentation. In response to the input, the module or frame receiving the input may call an action on a presentation activity, frame or module, thereby allowing the user to navigate through the presentation and accomplish objectives. When authoring a presentation, a user may associate a user initiated event or internally generated event with a module action. Authoring may be performed through an authoring interface provided by an authoring tool. The authoring tool may save a presentation as a package which can be distributed.
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