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Online Transaction Processing

Most mainframe and midrange mission-critical applications run as online transaction processing (OLTP) applications under the direction of a transaction-processing monitor, such as customer information control system (CICS) and information management system (IMS). CICS and IMS are widely used in mainframe environments to create distributed OLTP solutions, such as customer-tracking and order-entry solutions. TI integrates CICS and IMS by creating .NET interfaces to the CICS and IMS transactions and by calling for the services of, or invoking, those transactions on the host from a Windows-based application.

A two-phase commit (2PC) protocol is used when a transaction involves multiple programs running on multiple computers. Use the 2PC protocol to verify that each computer has completed its part of the transaction.

In This Section

CICS Components

IMS Components

Two-Phase Commit

Windows Transactions vs. Mainframe Transactions

See Also

Transaction Integrator Architecture