OWL-based data cube for conceptual multidimensional data model

To encourage a new novel generation of OLAP(On Line Analytical Processing) tools that enable users interact with multidimensional data in creative, visual, flexible and interactive way, there should be a sophisticated multidimensional data model (MDM) to represent natural hierarchical relationships of data related user domain of discourse. Furthermore, the ontology integration in this data model will leverages the interoperatibility among heterogeneous data warehouses. In this context, this paper introduces ontology-based MDM as an extended data model of MetaCube[1]. This model covers most of basic concepts, relationships of former model and provides a framework and mechanism to employ ontology in modeling process. Furthermore, this paper also gives an implementable OWL representation (a markup language of many of-the-shelf ontologies on the Web) for specification and data of this model.