process:
The event triggered a state change
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How to store:
1 A process consists of events and states, and actions lead to changes in states
2 The behavior and the state caused by the behavior are stored as a processing record, which we call "PROCESS",
3 A process consists of multiple FLOW_PROCESS
4 The structure of PROCESS is sometimes difficult to have a unified abstraction and is heterogeneous. It is necessary to distinguish between processes for storage.
There can also be a unified abstraction, and only one PROCESS table is needed at this time.
Need to indicate the ID of the process to which PROCESS belongs
If PROCESS needs to be processed manually by humans or machines, it needs to be marked with a handle to indicate whether it needs to be processed or has been processed
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Workflow engine? ? ?