and manipulate the data into the distributed database system. In the design of a distributed
database system, precise knowledge of application requirements is necessary, since database
schemas must be able to support applications effi ciently. Thus, the database design should be
based on both quantitative and qualitative information, which collectively represents applica-
tion requirements. Quantitative information is used in allocation, while qualitative information
is used in fragmentation. The quantitative information of application requirements may include
the following:
The frequency with which a transaction ...
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