Esteban Aliverti [https://community.jboss.org/people/eaa] created the discussion

"Re: What does multiple "lanes" mean on some of the examples provided?"

To view the discussion, visit: https://community.jboss.org/message/719476#719476

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> So using XOR join of both threads leading to one end is a direct equivalent, 
> isn't it?
I would say that in this simple process, yes, it is the same.
> I am still wondering why the (original) "multiple lane" approach is good for. 
> What real world scenarion it is good for?

Sometimes, for example, you have certain paths that repeat themselves in your 
process (like, for example, error treatment). A goog design for this (but not 
the only one) could be to have a different "lane" that treats an error when/if 
it occurrs. So in your process you can use a Throw Event that you can then 
catch using a Catch Event. That could be a valid scenario for having multiple 
"lanes".
> Has jBPM/BPMN2 same notion of "token" and "root token" as was in jBPM3/jPDL?
No. In jBPM5 there is no token going from node to node. The concept of Current 
Node Instances replaces it. So, in a particular point, you have a Process 
Instance with one or more Node Instances (1 node instance per "active" node in 
the process instance). When a Node instance finishes its execution, the next 
Node Instance is invoked and so on.

Best Regards,
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