Chapter 4 Building Business Process Diagrams

Synchronizations (BPM)

A synchronization enables the splitting or synchronization of control between two or more concurrent actions.

In the following example, the flow coming into the first synchronization is split into two separate flows coming into the Check Customer Account process and the Check Stock process. Then both flows are merged into a second synchronization giving a single flow, which leads to the Process Order process:

A synchronization can be created in a choreography diagram with any of the following target languages:

• Analysis languages (except BPMN)
• Orchestration languages
• Collaborative languages

A synchronization can be either a:

• Fork - Splits a single input flow into several independent output flows executed in parallel:
  
• Join – Merges multiple input flows into a single output flow. All input flows must reach the join before the single output flow continues:
  

A synchronization can be created in a data flow diagram to design a split/merge. For more information, see Working with the Data Flow Diagram chapter.

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