Towards Conceptual Multidimensional Design in Decision Support Systems

Details Towards Conceptual Multidimensional Design in Decision Support Systems Towards Conceptual Multidimensional Design in Decision Support Systems

2010-05-03

arxiv.org/abs/1005.0224v1

5th East-European Conference on Advances in Databases and Information Systems - ADBIS'01, Vilnius : Lithuania (2001)

Computer Science

Databases

Scientific paper

Multidimensional databases support efficiently on-line analytical processing (OLAP). In this paper, we depict a model dedicated to multidimensional databases. The approach we present designs decisional information through a constellation of facts and dimensions. Each dimension is possibly shared between several facts and it is organised according to multiple hierarchies. In addition, we define a comprehensive query algebra regrouping the more popular multidimensional operations in current commercial systems and research approaches. We introduce new operators dedicated to a constellation. Finally, we describe a prototype that allows managers to query constellations of facts, dimensions and multiple hierarchies.

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