Name	Notation	Description	Types	Status
Estimate	estimate	The data is an estimate only, not a direct measurement.	Concept	stable
Good	good	The data has been examined and represents a reliable measurem...	Concept	stable
Missing	missing	The data is missing.	Concept	stable
Poor	poor	The data should be considered as low quality and may have bee...	Concept	stable
Suspect	suspect	The data should be treated as suspect.	Concept	stable
Unchecked	unchecked	The data has not been checked by any qualitative or quantitat...	Concept	stable