8.Service Discovery

The Service Discovery is to find the component where the service is implemented.

Operator Control (the client) looks for the Discovery service by broadcasting Query Identification messages. The receiving Discovery service responses with Report Identification, which contains the Address of the Subsystem Manager component where the Discovery service resides.

Operator Control (the client) then sends the Query Comp Services List to the Discovery service, which replies Report Comp Services List message, that contains the addresses of the components, where the services are implemented.

Figure 7 Service Discovery Interaction