ODM2 Quality Code Controlled Vocabulary ODM2 Working Group A vocabulary for describing the quality of the observation. No data quality assessment has been made. None Marginal A quality assessment has been made and one or more data quality objectives has not been met. The observation may be suspect and has been assessed to be of marginal quality. A quality assessment has been made and enough of the data quality objectives have not been met that the observation has been assessed to be of bad quality. Bad A quality assessment has been made and all data quality objectives have been met. Good Unknown The quality of the observation is unknown.