摘要
数据仓库概念模型的设计是数据仓库设计的重要阶段,它既要正确反映用户的需求,又要使用户易于理解,而且不同于传统事务处理系统概念模式设计。提出了一个类地球模型的数据仓库概念模型,描述了其主要结构,给出了对该模型的评价,并应用到销售事实实例中,体现该模型清晰、多层的表示能力,对不规则的层次关系有一定的灵活性,同时还保留了较大的可扩展性。
Data warehouse concept model design is the important stage of the data warehouse design. It is prone to be comprehended by users ,as well as reflect users＇ demands exactly ,and it is also different from the concept pattern design of traditional affair treatment system. This text will put forward a Similar Earth Model （SEM） of data warehouse concept,describe its main structure,give out the valuation to this model,and put the model into a sales fact example. It reflects a clear and multilayered expression ability, a certain degree of flexibility to the level of irregular relations and a greater scalability of the model.
出处
《广西师范大学学报（自然科学版）》
CAS
北大核心
2007年第4期124-127,共4页
Journal of Guangxi Normal University:Natural Science Edition
基金
国家自然科学基金资助项目(60673066)
