关键词: 数据仓库 联机分析处理 多维数据模型 非覆盖维

Abstract: A new multidimensional conceptual model is proposed here based on current multidimensional models. The mapping from a parent level to one partition of a child level is defined to support irregular relationships among levels, such as non-covering and non-b

Key words: Data warehouse, OLAP, Multidimensional data model, Non-covering dimension