The right "task assignment strategy" for the tasks of a process is key

The right "task assignment strategy" for the tasks of a process is key for its success.

Some task assignment strategies:
Round Robin (self explanatory)
Workload balancing : the task is assigned to the user with the less number of open tasks.
Some crazy corporate policy...
etc.

But to achieve this you need to have access (from within a specific process instance) to the information of all the process instances of a specific process model in order to implement the logic. For example you need to know the number of open tasks X assigned to the user Y in all instances of the process model Z.
(Something like a static property of a C# class.)
Any ideas?
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OriginalPostID-116645

OriginalPostID-116645