Codelists from the Metadata for Data Quality (mdq) Namespace Codelists from the Metadata for Data Quality (mdq) Namespace ISO TC211 Metadata Standards 1.0 2017-09-01 eng UTF-8 DQ_EvaluationMethodTypeCode DQ_EvaluationMethodTypeCode description of the evaluation method and procedure applied description of the evaluation method and procedure applied directInternal method of evaluating the quality of a dataset based on inspection of items within the dataset, where all data required is internal to the dataset being evaluated directExternal method of evaluating the quality of a dataset based on inspection of items within the dataset, where reference data external to the dataset being evaluated is required indirect method of evaluating the quality of a dataset based on external knowledge