Ingeniare. Revista chilena de ingeniería
versión On-line ISSN 0718-3305
CARRERA SEPULVEDA, Sabina; VARAS CONTRERAS, Marcela y URRUTIA SEPULVEDA, Angélica. FUZZY MULTIDIMENSIONAL SCHEMA TRANSFORMATION FROM CONCEPTUAL TO LOGICAL LEVEL. Ingeniare. Rev. chil. ing. [online]. 2010, vol.18, n.2, pp. 165-175. ISSN 0718-3305. doi: 10.4067/S0718-33052010000200003.
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 modelling 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 multidimensionaldesign. 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.
Palabras clave : Data warehouses; fuzzy data warehouses; model transformation; model driven architecture.