dqm_algorithms::BasicStatCheck Node1 dqm_algorithms::BasicStat Check - m_name + BasicStatCheck() + clone() + execute() + printDescription() Node3 dqm_algorithms::CheckHisto_Mean + CheckHisto_Mean() Node1->Node3 Node4 dqm_algorithms::CheckHisto_RMS + CheckHisto_RMS() Node1->Node4 Node2 Algorithm Node2->Node1