A taxonomic and analytical survey of multidatabase systems

The successful integration of computational process and data from dlsparate sources is a complex process. An integrated system interconnects pre-existing systems to support global applications accessing more than one component system. For many global applications which require simultaneous access to multiple systems, such an integration presents an attractive alternative to a single system and offers enhanced performance and flexibility. Unlike traditional distributed systems, an integrated system interconnects component systems in a bottom-up fashion, thereby allowing existing applications developed on the component systems to remain executable without modification