Database Cooperation: Classification and Middleware Tools

Database Cooperation: Classification and Middleware Tools

Paolo Atzeni (Universita di Roma Tre, Italy), Luca Cabibbo (Universita di Roma Tre, Italy) and Giansalvatore Mecca (Universita della Basilicata, Italy)
Copyright: © 2000 |Pages: 9
DOI: 10.4018/jdm.2000040101
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Abstract

We propose new criteria for the classification of systems for database cooperation, based on the nature of the component databases. In fact, the traditional criteria - heterogeneity, distribution, and autonomy - are often constraints for the design process, rather than design parameters. In this case, other features of the component databases should be addressed. We claim that a more useful classification can be based on three new criteria: (a) degree of transparency, (b) complexity of operations, and (c) level of liveliness of data. This leads us to distinguish three main categories of systems: (i) multidatabases, (ii) data warehouses, and (iii) local information systems with external data. For each of these categories, we discuss implementations based on tools offered by currently available technology

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