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Guidelines to model with an Event-driven Process Chain?

  1. Start with an event (start event).

  2. End with an event (end event).

  3. Always alternate between events and functions. An event never follows another event.

  4. Only one input and output connector for each function/event.

  5. Events are “passive”. There is no decision made. Extended notation describes only functions in more detail. E.g. an ERP system is used to perform a function step.

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