Describes a measurement, calculation or setting capability of a device. Describes a measurement, calculation or setting capability of a device. If the element is present, it must have either a @value, an @id, or extensions Instance identifiers assigned to a device, by the device or gateway software, manufacturers, other organizations or owners. For example, handle ID. Indicates current state of the record. Indicates current operational state of the device. For example: On, Off, Standby, etc. Indicates the category of the observation generation process. A DeviceMetric can be, for example, a setting, measurement, or calculation. Describes the type of the metric. For example: Heart Rate, PEEP Setting, etc. The device to which this DeviceMetric applies. The referenced device could be a top-level device or a component of a device. Describes the unit that an observed value determined for this metric will have. For example: Percent, Seconds, etc. The preferred color associated with the metric (e.g., display color). This is often used to aid clinicians to track and identify parameter types by color. In practice, consider a Patient Monitor that has ECG/HR and Pleth; the metrics are displayed in different characteristic colors, such as HR in blue, BP in green, and PR and SpO2 in magenta. The frequency at which the metric is taken or recorded. Devices measure metrics at a wide range of frequencies; for example, an ECG might sample measurements in the millisecond range, while an NIBP might trigger only once an hour. Less often, the measurementFrequency is based on a unit other than time, such as distance (e.g., for a measuring wheel). The update period could be different than the measurement frequency, if the device does not update the published observed value with the same frequency as it was measured. Indicates whether the metric is derived (measured) by a continuous means or by an intermittent means. Describes the calibrations that have been performed or that are required to be performed. Describes a measurement, calculation or setting capability of a device. Describes the type of the calibration method. Describes the state of the calibration. Describes the time last calibration has been performed. If the element is present, it must have either a @value, an @id, or extensions Not Calibrated Calibration Required Calibrated Unspecified If the element is present, it must have either a @value, an @id, or extensions On Off Standby Unknown If the element is present, it must have either a @value, an @id, or extensions Active Inactive Entered in Error Unknown If the element is present, it must have either a @value, an @id, or extensions