ITauToolBase Node1 ITauToolBase + ~ITauToolBase() + initialize() + eventInitialize() + execute() + executeVertexFinder() + executeTrackFinder() + executeTrackClassifier() + executeShotFinder() + executePi0ClusterCreator() + executeVertexVariables() and 7 more... Node2 asg::IAsgTool + ~IAsgTool() + print() Node2->Node1 Node3 IAlgTool Node3->Node2