QSR Real Time Data Support

I would like to be able to define Real Time Numerical Data to Safe renderer objects. This Real Time Numerical Data (i.e. Heart Rate, Respiration Rate, SpO2 Concentration, etc.) that the developer deems safety critical will continue to be rendered on the safe side, continuing to receive the measurement from the patient.  The safety critical data can either be processed twice, by the QML and the QSR simutaneously or the safety critical data can just be rendered by the QSR.  

The Real Time Numerical Data deemed safety critical will continue to be displayed as long as there is no hardware failure to the system or failure of the sensor to detect on the patient.  The Real Time Numerical Data deemed safety critical by the designer should coincide with the representative Real Time Signal that should also be deemed safety critical and rendered by the QSR (see QSR-285)