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Preface
BACKGROUND
Recent developments in information systems technologies have resulted in the computerization of
many applications in various business areas. Data has become a critical resource in many organiza-
tions, and therefore, efcient access to data, sharing the data, extracting information from the data,
and making use of the information has become an urgent need. As a result, there have been many
efforts at not only integrating the various data sources scattered across several sites, but extracting
information from these databases in the form of patterns and trends has also become important.
These data sources may be databases ma ...