Paper 6
DSToolkit: An architecture for flexible Dataspace ManagementAuthors: Cornelia Hedeler, Khalid Belhajjame, Lu Mao, Chenjuan Guo, Ian Arundale, Bernadette Farias Loscio, Norman W. Paton, Alvaro A.A. Fernandes, and Suzanne M. Embury |
AbstractThe vision of dataspaces is to provide various of the bene ts of classical data integration, but with reduced up-front costs. Combining this with opportunities for incremental re nement enables a `pay-as-you- go’ approach to data integration, resulting in simpli ed integrated access to distributed data. It has been speculated that model management could provide the basis for Dataspace Management, however, this has not been investigated until now. Here, we present DSToolkit, the rst dataspace management system that is based on model management, and therefore, bene ts from the exi- bility provided by the approach for the management of schemas repre- sented in heterogeneous models, supports the complete dataspace lifecy- cle, which includes automatic initialisation, maintenance and improve- ment of a dataspace, and allows the user to provide feedback by annotat- ing result tuples returned as a result of queries the user has posed. The user feedback gathered is utilised for improvement by annotating, select- ing and re ning mappings. Without the need for additional feedback on a new data source, these techniques can also be applied to determine its perceived quality with respect to already gathered feedback and to identify the best mappings over all sources including the new one. |