If you are unfamiliar with BPMN 2.0, you might want to check out the first.

Coverage

Participants

Gateways

Events

In BPMN there are start events, intermediate events and end events. These three event types can be catching events or throwing events. Intermediate events can be used as boundary events on tasks, in which case they can be interrupting or non-interrupting. This gives you a lot of flexibility to use events in your processes.

Understanding BPMN Events

|Type|Start|Intermediate|End
||Normal|Event Subprocess|Event Subprocess non-interrupt |catch|boundary|boundary non-interrupt |throw|
|None||||||||
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|Timer||||||||
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|Link||||||||
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|Error||||||||
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|Termination||||||||
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|Cancel||||||||
|Multiple||||||||
|Multiple Parallel||||||||