Difference between revisions of "Process modelling"

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(Nodes)
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=== End node ===
 
=== End node ===
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End nodes define the end of the process execution. A process may have several end nodes. In this case the process finish when the process arrives to any of these end nodes.
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[[File:Jbpm node end.png|center]]
 
[[File:Jbpm node end.png|center]]
  
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=== Decision node ===
 
=== Decision node ===
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You can define the behaviour using a Action element, which will be executed when the process arrives to the node.
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[[File:Jbpm node decision.png|center]]
 
[[File:Jbpm node decision.png|center]]
  
 
=== Fork node ===
 
=== Fork node ===
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A fork node splits one path of execution into multiple concurrent paths of execution.
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[[File:Jbpm node fork.png|center]]
 
[[File:Jbpm node fork.png|center]]
  
 
=== Join node ===
 
=== Join node ===
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[[File:Jbpm node join.png|center]]
 
[[File:Jbpm node join.png|center]]

Revision as of 09:45, 12 January 2012

We are going to describe the elements which define a jBPM process. A process is composed by:

  • Nodes
  • Transitions
Workflow example simple.png

To create a process definition in a graphical way, you can use jBPM Graphical Process Designer. This tool is packaged as a Eclipse plugin.

Nodes

The define the states of the process definition. They are connected by transitions. Both define the different path which can be followed in a running process definition. A running process definition is called process instance.

There are several types of nodes:

Start node

Jbpm node start.png

End node

End nodes define the end of the process execution. A process may have several end nodes. In this case the process finish when the process arrives to any of these end nodes.

Jbpm node end.png

Task node

Jbpm node task.png

Node node

Jbpm node node.png

State node

Jbpm node state.png

Decision node

You can define the behaviour using a Action element, which will be executed when the process arrives to the node.

Jbpm node decision.png

Fork node

A fork node splits one path of execution into multiple concurrent paths of execution.

Jbpm node fork.png

Join node

Jbpm node join.png