[jbpm-dev] [Design of JBoss jBPM] - Why is a ProcessInstance not the same as an Execution

[thomas.diesler@jboss.com]

Relates to

http://www.jboss.com/index.html?module=bb&op=viewtopic&t=138615
http://jbpm.dyndns.org/jbpmwiki/index.php?title=JBPM3PublicAPI

The ProcessDefinition is the static definition of a process. An Execution is a specific execution of a process. 

There is however the notion of ProcessDefinition plus an associated set of meta data. For example an organization has a defined process for 'Order Processing' However, Order Processing is slightly different per region (i.e. different regional managers)

It would be incorrect to force a duplication of the ProcessDefinition per region. Instead we introduce the notion of ProcessInstance that can be configured through additional metadata


  | pim.createProcessInstance(pd, "apac.properties");
  | 


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