RoIBResult_p1 Node1 RoIBResult_p1 + RoIBResult_p1() Node2 std::vector< SubSysResult_p1 > Node2->Node1 #m_emtau #m_jetenergy Node3 SubSysResult_p1 + SubSysResult_p1() Node3->Node1 #m_ctp #m_muctpi Node3->Node2 +elements Node4 std::vector< uint32_t > + elements Node4->Node3 #m_header #m_roiWords #m_trailer