The diagnostic feature Root Cause Analysis (RCA) is also applicable to the aggregate service and is similar to the one discussed for the generic service. As in the case other service targets, the RCA region is displayed in the place of Performance and Usage region whenever the aggregate service is Down.

The previous image is a screenshot of the home page of the aggregate service target TravelReservationService. As can be seen, when the service status is Down, the possible root causes are displayed in the Possible Causes of Service Failure region. This region shows the possible causes of the automatic root cause analysis in a tabular form and the confidence level of the automatic RCA finding. It also provides a drill down to the Root Cause Analysis Details page, which provides a detailed view of the steps to arrive at the possible root causes.