Common Warehouse Metamodel Developer's Guide
Common Warehouse Metamodel Developer's Guide
MDA Explained: The Model Driven Architecture: Practice and Promise
MDA Explained: The Model Driven Architecture: Practice and Promise
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Motivated by the increasing use of data warehouse systems and the difficulties in its definition, we propose an automatic approach for discovering multidimensional structure from relational databases, based in MDA. MDA supports the development of software- systems through the transformation of models [1]. MDA requires that model transformations be defined precisely in terms of the relationship between a source meta-model and a target meta-model. This paper is concerned with OLAP schema derivation (target meta-model) starting from the Relational metamodel (source meta-model). For the definition and application of model transformations we use the proposal for QVT presented in [2].