This allows us to evaluate the completeness of the use-case model from a business perspective, as each system use case must support one or more business use cases.

这就允许我们从一种业务观点来评价用例模型的完整性，因为每个系统用例必须支持一个或更多的业务用例。

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Design model completeness: completeness of your architecture and design model, or design model progress (trend).

设计模型完成率：你的架构和设计模型的完成情况，或者设计模型的进展(趋势)。

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The expressive power of XQuery is comparable to the criterion of "relational completeness" defined for database query languages, though no such formal standard has been defined for an XML data model.

XQuery的表达能力可以与为数据库查询语言定义的“关系完整性”标准相比，虽然还没有为XML数据模型定义这样的正式标准。

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