The form of the ECA rule and its correspondence in the workflow engine

When events

If conditions then

Action

Endif

Endwhen

The ECA rules and certain event definitions and state conversion functions can represent the relationship between activities. However, such a model is based on the ideal situation where the active entities and object relationships are described separately, this makes it difficult for the model storage and workflow engine to explain it.

The correspondence between ECA and workflow engine:

The tasks of E and C are completed by the trigger subsystem, and the tasks of a are completed by the execution subsystem.