1. TRANSFORMACIÓN DE ESQUEMAS MULTIDIMENSIONALES DIFUSOS DESDE EL NIVEL CONCEPTUAL AL NIVEL LÓGICO.
- Author
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Sepúlveda, Sabina Carrera, Contreras, Marcela Varas, and Sepúlveda, Angélica Urrutia
- Subjects
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DATA warehousing , *RELATIONAL databases , *OLAP technology , *MODEL-driven software architecture , *FUZZY algorithms , *DATA modeling , *MULTIDIMENSIONAL databases , *MANAGEMENT - Abstract
In the databases field, several methods have been proposed for the generation of the logical design of a data warehouse, on the other hand there are also studies that allow the storage and operation of fuzzy data in relational databases. This paper presents a methodological proposal with an MDA approach. which allows to generate the logical design of a fuzzy DW. The technique was used to identify the basic elements of multidimensional modeling and extends them to manage fuzzy attributes in the measures at a conceptual level, through the application of a sequence of transformations to avoid the generation of a logical fuzzy multidimensional design. A key element for this process is the extension of the CWM OLAP metamodel with fuzzy stereotypes. Currently there is no formal method that allows to realize this kind of transformations. [ABSTRACT FROM AUTHOR]
- Published
- 2010