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| Term
| 3-tier architecture
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| Definition
| The prototypical three-tier architecture has a middle layer comprising a Transaction Processing (TP) monitor. The TP monitor employs a type of message queuing, transaction scheduling, and prioritization service where the client connects to the TP monitor—middle tier—instead of the database server. The transaction is accepted by the monitor, which queues it, and then takes responsibility for completion, thereby freeing up the client.
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| See also
| 2-tier architecture, n-tier architecture
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| You may edit this definition to improve or extend it.
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