How do you get Appian to process an OR Gateway adhering to the BPMN 2.0 standard

greggl over 9 years ago

How do you get Appian to process an OR Gateway adhering to the BPMN 2.0 standard? In BPMN 2.0, utilized by Appian, an Inclusive OR Gateway specifies that one or more of the available paths will be taken. They could all be taken, or only one of them. And when a 2nd OR Gateway is used to merge the paths, the OR gateway explicitly requires that all paths that were activated must be completed prior to continuing in the process.The behavior allows for implementing process flows where 0 to many paths may be taken and then whichever ones were taken for each process instance, they must all be completed before the process continues.

Appian adheres to the BPMN 2.0 standard for the OR Gateway split, but for the OR Gateway merge, it is not adhering to the standard and waiting for the all the instances to complete. My testing and Appian Docs at link below confirm this by stating "When multiple flows enter an OR node, the Gateway node pauses after the first in...

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0 greggl over 9 years ago

Merging multiple incoming flows with an AND Gateway would be stuck at the gateway waiting for any flows that did not occur for that process instance. I tested that as well. In theory I can put a series of XOR Gateways in front of the AND Gateway merge mimicking the conditions of the OR Gateway split. That seems like an ugly solution but perhaps would work. Does anyone know if that is what Appian recommends to achieve standard OR Gateway behavior?
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0 greggl over 9 years ago

Merging multiple incoming flows with an AND Gateway would be stuck at the gateway waiting for any flows that did not occur for that process instance. I tested that as well. In theory I can put a series of XOR Gateways in front of the AND Gateway merge mimicking the conditions of the OR Gateway split. That seems like an ugly solution but perhaps would work. Does anyone know if that is what Appian recommends to achieve standard OR Gateway behavior?
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