期刊名称：International Journal of Computer Science & Technology
印刷版ISSN：2229-4333
电子版ISSN：0976-8491
出版年度：2012
卷号：3
期号：2
页码：191-194
语种：English
出版社：Ayushmaan Technologies
摘要：Information is one of the most valuable assets of an organization and when used properly can assist in intelligent decision making that can significantly improve the functioning of an organization. Data Warehousing is a recent technology that allows information to be easily and efficiently accessed for decision-making activities by collecting data from many operational, legacy and possibly heterogeneous data sources. This paper provides an overview of data warehousing and OLAP technologies, with an emphasis on their new requirements. The problem arise in modeling data warehouse structure is that establishing an adequate representation of dimensions in order to facilitate and to control the analysis operations. There is a need to apprehend complex structures interconnecting dimensions and facts in variousways. In this paper, we propose a model through which dimensions at different levels can be shared between different facts and various relationships between these facts can be described. Using this model, we then define the notion of well-formed warehouse structures.
