Event-Driven Process Chain
Event-driven Process Chains (EPC) are very similar to process diagrams in that
they show a process and each of the elements involved in the completion of that
process. However, EPC use special symbols and notation, and are always triggered
by an event.
Typical Uses
Event-driven Process Chains are best used in place of any other process diagram if
the process begins with a specific event. This event sets the situation for the rest
of the process. It is not just a process, but a process completed under very specific
circumstances.
Best Practices
- Start the diagram. An Event-driven Process Chain begins with an event, symbolized by a hexagon. Add an event to the top of the page.
- Add a function. Functions are represented by rounded rectangles and represent an action or process taken that leads from one state to the next.
- Input and output. Input and output from outside or inside sources can also trigger certain functions or processes and are symbolized by rounded rectangles with a vertical line through it.
- Add information. Information or materials are represented by rectangles.
- Make connections. Use arrows to connect between two different nodes. You may also branch off if one node may lead to one of two others. You may also use a fork or join two different process flows together, in other words, two nodes lead to the same conclusion.
- Finish. In an Event-driven Process Chain must finish with an event.