ByteStreamMergeOutputSvc Node1 ByteStreamMergeOutputSvc - m_inSvcName - m_outSvcName - m_inSvc - m_outSvc - m_bsOutputStreamName - m_overwriteHeader + ByteStreamMergeOutputSvc() + ~ByteStreamMergeOutputSvc() + initialize() + putEvent() + putEvent() + queryInterface() - reducedROBid() Node2 ByteStreamOutputSvc + ByteStreamOutputSvc() + ~ByteStreamOutputSvc() + putEvent() + putEvent() + interfaceID() Node2->Node1 Node3 AthService - AthService() - AthService() - operator=() Node3->Node2 Node4 AthCommonMsg< Service > + msg() + msg() + msgLvl() Node4->Node3 Node5 Service Node5->Node4