Trk::IVertexMergingTool Node1 Trk::IVertexMergingTool + ~IVertexMergingTool() + mergeVertexContainer() + interfaceID() Node3 Trk::SecVertexMergingTool - m_Compatidime - m_minDist - m_iVertexFitter + initialize() + finalize() + SecVertexMergingTool() + ~SecVertexMergingTool() + mergeVertexContainer() - checkCompatibility() Node1->Node3 Node4 Trk::VertexMergingTool - m_beamSpotKey - m_iVertexFitter - m_useBeamConstraint + initialize() + VertexMergingTool() + ~VertexMergingTool() + mergeVertexContainer() - checkCompatibility() Node1->Node4 Node2 IAlgTool Node2->Node1