ActiveVOS Designer User’s Guide
The notation for a start none, intermediate none, and end none events are BPMN only. These events are equivalent to a BPEL Empty activity.
The start and end none events are useful at the beginning and end of a control flow to indicate the boundary of the flow. The start none event does not have a trigger. The end none event does not have a result.
The intermediate none event can be added within a control flow, such as the else if branch of an If activity.
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