多媒体结构的设计与选择

Structured multimedia authoring and selection

构造一个上下文敏感,具有可交互性的多媒体表示远比单纯构造视听信息或者单纯构造文本信息复杂得多。多媒体对象之间的交互需要有一个用来同步和异步交互的,包括立即响应的时空关系组织起来。根据构造环境的需要来考虑多媒体的结构构造。先通过介绍影响多媒体结构构造的7个要素来认识多媒体,然后在4种典型的构造模式中进行多媒体环境的选择。这4种构造模式分别是:结构化、时间关系、图关系、脚本形式。通过各种各样的观察和分析发现,结构化的多媒体构造为多媒体的表示提供了最为有效的表示形式。

Authoring context sensitive, interactive multimedia presentations is much more complex than authoring either purely audio- visual applications or text, Interactions among media objects need to be described as a set of spatio-temporal relationships that account for synchronous and asynchronous interactions, as well as on-demand linking behavior. It is considered the that need to be addressed by an authoring environment. The article begins with a partitioning of concerns based on seven classes of authoring problems, then a selection of multimedia authoring environments within four different authoring paradigms： structured, timeline, graph and scripting is designed, Observations and insights into the authoring process and argue are provided that the structured paradigm provides the most useful framework for presentation authoring.