数据仓库/数据集市体系结构的改进

本文提出了一种新的建立数据集市／数据仓库体系结构的方法。它使用同一数据加载机制同时向各数据集市和中心数据仓库加载数据，将当前数据和轻度综合数据加我到数据集市，将历史数据和共享数据加载到中心数据仓库．并通过二次集成特各部门高度综合的数据加载到中心数据仓库。这种结构既具有自底向上方法的优点，又具有自顶向下方法的优点，例如。开发简单、数据结构统一等；而且比联合方法优越的是，解决数据的重复存储，使数据存储结构更合理，提供的数据更符合各级决策者需要。

To Improve the System Structure of Data Warehouse & Data Mart

This paper raises a new method to build the data mart and data warehouse system. It uses the same loading program to load data to all data marts and data warehouse. It loads the detailed data and light summing-up data to the data mart, the historic data and shared data to the data warehouse, and the high summing-up data to central data warehouse through second integration. This system not only has advantages of bottom-up method and top-down method, such as easy developing and the same data structure, but also has more advantages than joint method, such as more reasonable data structure and accord with policymakers' demands.