Conventions for connections
ARIS models
The use of connections in the EPC is subject to the following conventions for the simulation:
- Events (except start and end events) must have exactly one incoming and one outgoing connection.
- Start events must not have an incoming connection and must have exactly one outgoing connection.
- End events must have exactly one incoming connection and must have no outgoing connections.
- Functions must have exactly one incoming and one outgoing connection.
- Rules may have several incoming and several outgoing connections.
BPMN diagrams
The use of connections in the BPMN process diagram is subject to the following conventions for the simulation:
- Events (except start and end events) can have multiple incoming and outgoing connections.
- Start events must not have any incoming connections.
- End events must not have any outgoing connections.
- Activities can have multiple incoming and outgoing sequence flows.
- Sequence flows must not cross pool boundaries.
- Gateways can have multiple incoming (join) and outgoing (split) gates.
- Gateways must not be the source or target of message flows.
- Message flows must connect two pools or two objects in separate pools.
See also
What conventions are applied to the modeled control flow?
Conventions for modeled sequence flow/message flow (BPMN)