Workflow Model Analysis-Multi-instance Model

Workflow Model Analysis-Multi-instance Model

The multi-instance model refers to the same activity in the process and multiple instances exist at the same time.

1) asynchronous
When multiple instances are created, these instances are independent of each other.
Because they do not affect each other, the number of instances generated by the asynchronous multi-instance model is arbitrary. When talking about what can be produced
When the number of instances, we are talking about synchronization, as shown in the following three points.
2) The definition period determines the number of instances.
To put it simply, you can define the number of instances that an activity can generate in JaWE.
3) The number of instances is determined during the running period.
During the process, the number of instances that can be generated by an activity is dynamically determined.
4) any number of instances
A rough description is that an activity can generate an instance if you want to generate an instance.

Generally, the standard only supports the first two models, including the xpdl standard.