Device Setting that are Changeable   

In this example, the settings for high and low glucose alarm thresholds on each CGM device could be altered during the study and the DU domain was therefore used to record information about each new configuration. The DUDTC variable is used to represent the time at which the device was used with the specified device setting. In this example, the CGM device was in use at the time the new alarm settings were applied, so the DUDTC values indicate when the new alarm settings were applied to the device. Certain Expected variables may have been omitted in consideration of space and clarity.