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2005
IEEE

Database Wrappers Development: Towards Automatic Generation

9 years 2 months ago
Database Wrappers Development: Towards Automatic Generation
Wrapping databases allows them to be reused in formerly unplanned contexts, such as web-based applications or federated systems. Indeed, a wrapper can provide external clients of an existing (legacy) database with a neutral interface and augmented capabilities. However, except in simplistic cases where the wrapper and the database schemas are similar, the wrapper must implement complex mappings: it must translate queries from the wrapper data manipulation language to the database primitives, and, conversely, translate extracted data into the external wrapper format. We have developed a generic schema mapping framework in which wrappers can be specified formally and generated automatically. This framework comprises a highlevel generic data model and a set of schema transformations defined for this model. This reference model makes it possible to specify different data models in a uniform formalism. Mappings between schemas are expressed as sequences of reversible schema transformatio...
Philippe Thiran, Jean-Luc Hainaut, Geert-Jan Hoube
Added 24 Jun 2010
Updated 24 Jun 2010
Type Conference
Year 2005
Where CSMR
Authors Philippe Thiran, Jean-Luc Hainaut, Geert-Jan Houben
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