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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

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