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BPMN Basic Rules

A few basic rules of BPMN:

i	Are used to show the order that Activities will be performed in a Process

x	They cannot cross Sub-Process boundaries

x	They cannot cross Pool boundaries

i	Are used to show communication between Participants

x	They cannot connect objects that are within the same Pool

✪	Must have at most one outgoing Sequence Flow

x	Must not have any incoming Sequence Flow

✪	A Start Event in a Sub-Process must be of type None