Database designers have long used the term "star schema" to describe dimensional models because the resulting structure looks like a star.

数据库设计师长期使用术语“星型模式”来描述维度模型，因为结果结构看上去像一个星星。

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It is worth noting that, depending on the term, the physical structure may not be a mandatory aspect to collect and may be defined later or in the specification phase as data models are developed.

值得注意的是，根据术语的不同，物理结构可能不是必需收集的信息，可以以后在开发数据模型时再确定。

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This paper simply surveyed the theory of term structure of interest rates and commented native and foreign models of term structure of interest rates.

本文简要地阐述了利率期限结构理论，并对国内外的有关利率期限结构的模型进行了评述。

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