Workflow Control Pattern 7 - Structured Synchronizing Merge

The convergence of two or more branches (which diverged earlier in the process at a uniquely identifiable point) into a single subsequent branch such that the thread of control is passed to the subsequent branch when each active incoming branch has been enabled. The Structured Synchronizing Merge occurs in a structured context, i.e. there must be a single Multi-Choice construct earlier in the process model with which the Structured Synchronizing Merge is associated and it must merge all of the branches emanating from the Multi-Choice. These branches must either flow from the Structured Synchronizing Merge without any splits or joins or they must be structured in form (i.e. balanced splits and joins). Synchronizing join, synchronizer. Examples: -Depending on the type of emergency, either or both of the despatch-police and despatch-ambulance tasks are initiated simultaneously. When all emergency vehicles arrive at the accident, the transfer-patient task commences.