When integrating data from heterogeneous sources, it is often necessary to transform both the schemas and the data from the underlying sources in order to present the integrated d...
Abstract. This paper argues in favor of a database conceptual schema and Semantic Web ontology design discipline that explores analogy mappings to reuse the structure and integrity...
Karin Koogan Breitman, Simone Diniz Junqueira Barb...
We present a new approach to the grid technology that is based on federated databases and updatable views. Views are used in two ways: (1) as wrappers of local servers that adopt l...
Hanna Kozankiewicz, Krzysztof Stencel, Kazimierz S...
Data integration is a significant challenge: relevant data objects are split across multiple information sources, and often owned by different organizations. The sources represent...
Whilst it is a common task in systems integration to have to transform between di erent semantic data models, such inter-model transformations are often speci ed in an ad hoc manne...