Examples of Transaction Control The following section provides some examples of iProcess transaction control. Case Data Updates to the SQL Server using MSDTC In a simple process where iProcess case data is being updated in the SQL database and an external database using an EAI plug-in, the transaction process involves the following: 1. The iProcess Engine starts a transaction by notifying the MSDTC. 2. The SQL Server resource manager enlists itself as part of the transaction with the MSDTC. 3. The external database resource manager also enlists itself as part of the transaction with the MSDTC. 4. If all the case updates are successful, the MSDTC performs a two phase commit operation with all resources that are enlisted as part of the transaction. External Updates Using EAI Steps The Enterprise Application Integration (EAI) steps can be used in procedures to control updates to third party applications and iProcess case data under transaction control. If the external applications operate in the same TPM environment as iProcess, all business operations in a single procedure can be completed as one global transaction.