InDet::IInDetTrackTruthOriginTool Node1 InDet::IInDetTrackTruthOriginTool + initialize() + getTruth() + getTruthOrigin() + getTrackOrigin() + isFrom() Node2 asg::IAsgTool + ~IAsgTool() + print() Node2->Node1 Node3 IAlgTool Node3->Node2