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商务智能系统的分层

Jun 07, 2016 pm 03:22 PM
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商务智能系统至多可以分为五层: 数据源层数据转换层数据存取层分析层表示层 数据源层包含的数据有: 1.维护公司日常运作的系统中的数据,包括文本文件、Excel电子表格文件或者Access数据库文件中的数据。2.从外部源中获取的数据。 数据转换层用于从不同数据

商务智能系统至多可以分为五层:

数据源层数据转换层数据存取层分析层表示层

数据源层包含的数据有:

1.维护公司日常运作的系统中的数据,包括文本文件、Excel电子表格文件或者Access数据库文件中的数据。2.从外部源中获取的数据。

数据转换层用于从不同数据源提取数据,修改数据使其内部一致,并将修改后的数据载入数据存储系统。

数据存取层是在关系数据库(RDBMS)中创建的数据仓库。数据仓库的下一层是数据集市(data mart)或者联机分析处理数据库(OLAP)。

商务智能系统的分析层用于把数据(data)转换成信息(information),并且向决策者提供了一个便捷的访问渠道。

多维联机分析处理数据库构成了商务智能系统的分析层。

报表及可视化工具构成了商业智能系统的表示层。表示层的应用程序能够查询数据仓库、数据集市或多维联机分析处理数据库。并将数据表示为不同的格式。

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