PixelRIO_OnTrackErrorScaling Node1 PixelRIO_OnTrackErrorScaling + s_type # s_names + clid() + getScaledCovariance() + postProcess() + type() + paramNames() Node2 RIO_OnTrackErrorScaling - m_params + RIO_OnTrackErrorScaling() + ~RIO_OnTrackErrorScaling() + clid() + params() + params() + postProcess() + type() # checkParameters() Node2->Node1