Integration of heterogeneous resources through updatable views

摘要

We propose a new approach to integration of distributed heterogeneous resources on the basis of a canonical object-oriented database model, a query language and updateable database views. Views are used as wrappers/mediators on top of local servers and as a data integration facility for global applications. Views support location, implementation and replication transparency. Because views are defined in a high-level query language, the mechanism is much more abstract and flexible in comparison to CORBA, Web services, etc. The paper presents a short introduction to the query language SBQL and updateable views. It also presents the architecture of the grid network based on updateable views, and simple examples illustrating the mechanism.