Dealing with contextualized data is a key challenge in data warehouses (W). Nowadays, DW systems are often monocontext. However, in real life applications, DW indicators are shared by many users with different profiles. In this paper, we propose an ontology-based approach for designing multi-contextual DW. An ontology formalism incorporating the contextualization concepts is given. We propose to consider the contextualization at the conceptual level. We validate our proposal using a real case study from the medical domain.
展开▼
