DataModelCompatSvc Node1 DataModelCompatSvc + DataModelCompatSvc() + initialize() + handle() + debug() + error() Node2 AthService - AthService() - AthService() - operator=() Node2->Node1 Node3 AthCommonMsg< Service > + msg() + msg() + msgLvl() Node3->Node2 Node4 Service Node4->Node3 Node5 RootUtils::ILogger + ~ILogger() + debug() + error() Node5->Node1 Node6 IIncidentListener Node6->Node1