The Monitoring circle represents the monitoring: Talend Activity Monitoring Console and the Service Activity Monitoring.
Talend Activity Monitoring Console allows end-users to monitor the execution of technical processes. It provides detailed monitoring capabilities that can be used to consolidate log information collected, understand the interaction between underlying data flows, prevent faults that could be unexpectedly generated and support system management decisions. For more information on Talend Activity Monitoring Console, see the Talend Activity Monitoring Console User Guide.
The Service Activity Monitoring allows end-users to monitor service calls. It provides monitoring and consolidated event information that can be used to understand the underlying requests and replies that compose the event, monitor faults that may be unexpectedly generated and support the system management decisions. For more information on the Service Activity Monitoring see the Talend Administration Center User Guide.