Asset Information Manager Subset handles each request from a Web browser as one processing unit, but it does not provide a function for managing transactions. A database management system's transaction management function is used to handle output access to the Asset Information Manager Subset database or addition and update operations in multiple related tables as a single transaction. This method enables you to protect the integrity of Asset Information Manager Subset database and discard active transactions in the event of an error on the Asset Information Manager Subset server.

For example, if an error is reported to the Web browser, Asset Information Manager Subset's database transaction is not discarded. If a timeout or communication error occurs in the Web browser, re-execute the processing that was underway immediately before the error.