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Object identification in multidatabase systems


Author(s) : Mohammad Ketabchi Joseph Albert Rafi Ahmed William Kent Ming-chien Shan, 
Publisher : N/A
Publication Date : 1993
ISSN : N/A
Abstract : In the Pegasus prototype multidatabase system, the key to the problem of object identity is a differentiation between the view of a data administrator, capturing all the underlying discrepancies and their solutions, and the view of an end user or application, in which only a consistent result is visible. New language constructs with which the administrator can describe solutions to identity problems include underlying and unifying types, the Image function, and producer types. 1,