I also thing we need to do it « a la smalltalk » and consider workflow split
over multiples images. Does A4BP or BPM flow manage that ?
What exactly do you want to split over multiple images ? It can be only
applied to parallel tasks.
1) The execution of the workflow ? Task1 executed by VM1, Task2 executed
by VM2 and so on ...
2) Task Assignment for different users ? Suppose there are 4 parallel
task to be done in a workflow these task are split to different VMs.
3) Add here any other options to split over multiple VMs.
BpmFlow does not support 1) for ScriptTasks, i think for this you will
need a master VM to orchestrate the execution.
Definitely 2) is supported, on the same BPM Process different user tasks
can be executed by different VMs (remember Bpm Flow run on GemStone, it
should be ported to Pharo first). I talking about a Frontoffice
application here (different from case 1) where at the same time
different users can take an available task (of the same BPM Process) to
finish and eventually these tasks can be served by a different VMs.
Actually 1) can be implemented in BpmFlow without a master VM. Let
suppose that a one point N Script Tasks (long and complex scripts) are
generated in the same BPM Process. Those Script Tasks can be put on a
RcCollection (or a table if you use a RDB) and multiple VMs can access
that collection and execute tasks. I just added this an issue:
https://github.com/brunobuzzi/BpmFlow/issues/845
Bpm Flow does something like this for Timer Events (events collection
can be accessed by multiple VMs):
https://bpmflow.gitbook.io/project/functional-and-technical-information/timers/task-timers
Regards,
Bruno
