Karl Jones: Created page with "Petri net trajectory diagram.A '''Petri net''' (also known as a place/transition net or P/T net) is one of several mathematical..."

2016-06-14T09:11:27Z

Created page with "Petri net trajectory diagram.A '''Petri net''' (also known as a place/transition net or P/T net) is one of several mathematical..."

New page

[[File:Petri_net_trajectory_diagram.gif|frame|Petri net trajectory diagram.]]A '''Petri net''' (also known as a place/transition net or P/T net) is one of several mathematical modeling languages for the description of distributed systems.

== Description ==

A Petri net is a directed bipartite graph, in which the nodes represent transitions (i.e. events that may occur, represented by bars) and places (i.e. conditions, represented by circles).

The directed arcs describe which places are pre- and/or postconditions for which transitions (signified by arrows).

Some sources state that Petri nets were invented in August 1939 by Carl Adam Petri—at the age of 13—for the purpose of describing chemical processes.

Like industry standards such as UML activity diagrams, Business Process Model and Notation and EPCs, Petri nets offer a graphical notation for stepwise processes that include choice, iteration, and concurrent execution.

Unlike these standards, Petri nets have an exact mathematical definition of their execution semantics, with a well-developed mathematical theory for process analysis.

== See also ==

* [[Communicating finite-state machine]]
* [[Computer science]]
* [[Finite-state machine]]
* [[Kahn process networks]]
* [[Mathematics]]
* [[Petri Net Markup Language]]
* [[Petriscript]]
* [[Process architecture]]

== External links ==

* [https://en.wikipedia.org/wiki/Petri_net Petri net] @ Wikipedia

[[Category:Computer science]]
[[Category:Mathematics]]

Petri net - Revision history

Karl Jones: Created page with "Petri net trajectory diagram.A '''Petri net''' (also known as a place/transition net or P/T net) is one of several mathematical..."