多版本数据仓库模型设计

Model Design of Multi-version Data Warehouse

针对数据仓库多维模式结构的进化问题提出一种多版本数据仓库模型,给出模型结构、模型对象以及对象之间指派关系的定义。多版本数据仓库基于"版本控制"策略管理数据仓库的多维模式,将数据仓库进化过程中的每一种有效状态都以版本的形式保存下来。决策者可以在特定的结构版本中分析历史数据,有利于更准确地把握业务事实。

This paper aims at the issue on data warehouse schema evolution, proposes a model of multi-version data warehouse and gives the structure of model, definition of objects and their assignment relations. The multi-version data warehouse manages multi-dimension schema based on ＂version control＂ strategy that means to hold every valid state of DW using versions. Decision-maker can analyze historical facts data in a specified schema version, which is helpful for people to make decision.