Abstract
The presence of large numbers of heterogeneous databases in a given organization is prompted by the replacement of traditional data processing with modern database management systems (DBMS) for traditional applications, such as record keeping, product assemblies and inventory control, as well as for new applications, such as expert-system support, design automation and manufacturing engineering. These heterogeneous databases form a federation in the organization due to the desire to facilitate data sharing and resource consolidation while maintaining the local autonomy of individual databases, which are dictated by their particular security requirements, integrity constraints and application specificities. This paper outlines an architecture for the federated databases, based on the multimodel, multilingual, and multibackend approach, that facilitates data sharing and resource consolidation in a heterogeneous database environment without compromising the autonomy of individual databases.
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