Process Tree to Petri Net

This node converts a process tree into a Petri net. No configuration is needed to complete the conversion.
A process tree is a block-structured process model where the (inner) nodes are operators (sequence, choice, parallel, and loop) and the leaves are activities.
A Petri net is a directed bipartite graph used to model processes. It consists of places, transitions, and directed arcs connecting them. A place is enabled if it it contains at least one token. A transition can only fire if all incoming places are enabled. After firing a transition, a token is consumed from all of its incoming places, and a token is produced in all of its outgoing places. The initial marking indicates the initial state of the Petri net. Places that belong to the initial marking are marked by green tokens inside them. The final marking denotes the final state of the Petri net. Places within the final marking are highlighted with a heavier border.

Input ports

1. Type: Process Tree
   Process Tree
   a process tree

Output ports

1. Type: Petri Net
   Petri net
   a Petri net