There's precedence:
There's precedence:
The External Framework could be a REST based framework, as indicated in the diagram, or a Message System too.
The External Framework could be a REST based framework, as indicated in the diagram, or a Message System too.
The Event is external.
The Policy is the Adapter.
The Command is the Core Port
See lower right:
The Event is external.
The Policy is the Adapter.
The Command is the Core Port
See lower right: