Normally air quality data is collected as it is measured and stored as raw data in Airviro. Calibrations can then be applied (and stored) to the data in order to have scaled values.

Indico validation also works as an advanced editor.
Data can be edited, deleted and functions can be applied to it in order to correct drift.

An edited time series can be saved as an new instance.
This last step after validation is called ratification.