...

3. Writing a Control Loop Type Definition

The TOSCA definition of a control loop contains a TOSCA Node Template for the control loop itself, which contains TOSCA Node Templates for each Control Loop Element that makes up the Control Loop.

To create a control loop, a user creates a TOSCA Topology Template. In the Topology Template, the user creates a TOSCA Node Template for each Control Loop Element that will be in the Control Loop Definition. Finally, the user creates the Node Template that defines the Control Loop itself, and references the Control Loop Element definitions that make up the Control Loop Definition.

4. Creating Custom Control Loop Elements

...