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Importance of Transactions<br />
� Basis of all computer-based funds management (1998)<br />
� about 50 000 000 000 $ per year<br />
� Because COMMIT/ABORT are visible at the application level they<br />
provide a good foundation for customized distributed-processing<br />
control.<br />
� Operations on the shared data base are “independent” of the<br />
implementation of this shared data base.<br />
Transactions<br />
© 2009 Universität Karlsruhe, System Architecture Group 32