LVL1::IL1CPHitsTools Node1 LVL1::IL1CPHitsTools + formCPMRoI() + formCPMHits() + formCPMHits() + formCMMCPHits() + formCMMCPHitsModule() + formCMMCPHitsCrate() + formCMMCPHitsSystem() + interfaceID() Node2 IAlgTool Node2->Node1