(1) A coordinated commitment control process between communicating transactions that ensures that all logically-related updates to recoverable resources are completed or that all are backed out.
(2) The cross-site mirroring (XSM) processing that copies data from the production copy to the mirror copy.
(3) In Unified Modeling Language (UML), the visual representation of the forks and joins representing parallel workflows. Synchronizations enable you to see a simultaneous workflow in an activity diagram or state chart diagram.
(4) The process by which a satellite downloads and runs the same DB2 database commands, operating system commands, and SQL statements from the satellite control server as the other members of its group download and then reports the results to the satellite control server.