In the case of uncertainty, the definition of rationality becomes problematic . 在非确定的情况下,合理性的概念却难以确定。
Starting from the time theory and the temporal logic , and taking into account the dynamic properties of multimedia performance , the extended uncertain interval relationships set adapting to describe the multimedia system is proposed . by deducing in theory , it is simplified to a very plain temporal model that has only 6 canonical operation symbols . 2 从时间理论和时态逻辑的途径出发,结合多媒体表现的动态特性,通过分析推导得出适合多媒体系统的非确定的时间片关系的扩展集,并将其简化为只有6个操作符规范的、非常直观的多媒体时态模型。