| 摘要 |
<p>An interactive multimedia presentation playable by a presentation system includes a media content component and an interactive content component. The interactive content component includes one or more applications, which provide instructions for organizing, formatting, and synchronizing the presentation of interactive objects to a user. Prior to playing the interactive multimedia presentation, an entity responsible for authoring or publishing one or more of the applications is digitally identified and authenticated, or it is determined that the applications are unsigned. Prior to and/or during play of the interactive multimedia presentation, authorization for performing certain actions (such as executing certain application instructions, especially those that access functionality of the presentation system, computer-readable media, or external networks) is granted via a permission-based model. User input and application requests may be considered in determining whether an application is granted permission to perform certain actions.</p> |
