对接受者来说，新闻价值是一种特殊的即时性信息效用。
To the recipients, news value is a special immediate information effect.
为了从用户使用信息的角度评价C3I系统，提出了C3I系统信息生产-消费模型和信息效用概念。
In order to evaluate the value of C3I system on the view of use, the production-consumption model and information utility are presented as new concepts in this paper.
这些文件的内容和效用因系统而异，但是文件提供的核心信息通常是一致的。
The content and utility of these files varies from system to system, but the core information provided by the files is often consistent.
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