IAthenaSharedWriterSvc Node1 IAthenaSharedWriterSvc + share() + interfaceID() Node3 AthenaRootSharedWriterSvc - m_cnvSvc - m_rootServerSocket - m_rootMonitor - m_rootMergers - m_rootClientIndex - m_rootClientCount - m_numberOfStreams + AthenaRootSharedWriterSvc() + ~AthenaRootSharedWriterSvc() + initialize() + stop() + finalize() + queryInterface() + share() Node1->Node3 Node2 IService Node2->Node1