[jboss-dev-forums] [Design of JBoss jBPM] - execution transitions, data flow and other associations

[tom.baeyens@jboss.com]

currently, our model only has transition as the directed connection between nodes.

the BPDM (http://www.bpmn.org/BPDM_Documents.htm) defines multiple types of connections:
* sequence flow (for execution transitions)
* message flow (expressing how data flows in the process)
* association (just any association that a business user can draw between two graphical elements)

would it make sense to add multiple types of connections to the jbpm core library over time ?

how could these be used in jPDL ?  what would a data connection mean exactly ?  what are its possible sources and destinations ?  

could data connections also influence the execution ?  e.g. if execution arrives in a node that also is the destination of a data connection and that data is not available yet, should be process execution be halted till the data becomes avialable ?

more questions then answers.  please add your opinions so that we can get closer to the answers :-)


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