Through the research and analysis of data in the database, unified modeling language (UML) is used to analyze and design the digital river information management system.

对数据库中的数据研究和分析，利用统一建模语言(uml)分析和设计数字河道信息管理系统。

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Based on the unified data modeling, this resolution realizes the uniform request service to distributed heterogeneous spatial data by metadata and multi-database system.

该解决方案通过建立统一的数据模型，使用元数据与多数据库系统实现了对分布的异构的空间数据的统一访问请求服务。

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After analyzing current technology background, a kind of unified modeling language (UML) activity model checking mechanism based on rule database in Telecom services is proposed.

在分析现有的技术背景后，提出了一种基于规则库的电信业务统一建模语言(uml)活动图验证机制。

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