Definition

Completeness measures the amount of data a sensor collects compared to the amount of data that was possible to collect if the sensor operated continuously, without data outages, during a period (e.g., 1 hour, 1 day). A 75% completeness level is a useful criterion to meet as the averaged data is generally representative of that time period. For example, at least 45 1-minute measurements are needed to make a valid 1-hour average at 75% completeness.