data completeness Degree to which all required measurements are known. Values may be designated as “missing” in order not to have empty cells, or missing values may be replaced with default or interpolated values. In the case of default or interpolated values, these must be flagged as such to distinguish them from actual measurements or observations. Missing, default, or interpolated values do not imply that the dataset has been made complete. https://orcid.org/0000-0002-5214-4466 https://orcid.org/0000-0003-2687-1982 data stewardship technical concept