Data Understanding - Quality (ISO-19157)
From Earth Science Information Partners (ESIP)
This spiral includes ISO 19157 concepts for documenting quality measures, evaluation procedures and reports.
| Concept | Description | Dialect (Fit) Paths |
|---|---|---|
| Data Quality Scope | The specific data to which the data quality information applies. | ISO /gmd:MD_Metadata/gmd:dataQualityInfo/gmd:DQ_DataQuality/gmd:scope/gmd:DQ_Scope/gmd:level/gmd:MD_ScopeCode ISO-1 /mdb:MD_Metadata/mdb:dataQualityInfo/mdq:DQ_DataQuality/mdq:scope/mcc:MD_Scope/mcc:level/mcc:MD_ScopeCode |
| Standalone Report | Reference to external standalone quality report. | ISO-1 /mdb:MD_Metadata/mdb:dataQualityInfo/mdq:DQ_DataQuality/mdq:standaloneQualityReport |
| Report | Quantitative quality information for the data specified by the scope. | ISO /gmd:MD_Metadata/gmd:dataQualityInfo/gmd:DQ_DataQuality/gmd:report ISO-1 /mdb:MD_Metadata/mdb:dataQualityInfo/mdq:DQ_DataQuality/mdq:report |
| Completeness Report | The presence and absence of features, their attributes and relationships. | ISO /gmd:MD_Metadata/gmd:dataQualityInfo/gmd:DQ_DataQuality/gmd:report/gmd:DQ_CompletenessOmission ISO /gmd:MD_Metadata/gmd:dataQualityInfo/gmd:DQ_DataQuality/gmd:report/gmd:DQ_CompletenessComission ISO-1 /mdb:MD_Metadata/mdb:dataQualityInfo/mdq:DQ_DataQuality/mdq:report/mdq:DQ_CompletenessCommission ISO-1 /mdb:MD_Metadata/mdb:dataQualityInfo/mdq:DQ_DataQuality/mdq:report/mdq:DQ_CompletenessOmission |
| Logical Consistency | The degree of adherence to logical rules of data structure, attribution and relationships (data structure can be conceptual, logical or physical). | ISO /gmd:MD_Metadata/gmd:dataQualityInfo/gmd:DQ_DataQuality/gmd:report/gmd:DQ_ConceptualConsistency ISO /gmd:MD_Metadata/gmd:dataQualityInfo/gmd:DQ_DataQuality/gmd:report/gmd:DQ_DomainConsistency ISO /gmd:MD_Metadata/gmd:dataQualityInfo/gmd:DQ_DataQuality/gmd:report/gmd:DQ_FormatConsistency ISO /gmd:MD_Metadata/gmd:dataQualityInfo/gmd:DQ_DataQuality/gmd:report/gmd:DQ_TopologicalConsistency ISO-1 /mdb:MD_Metadata/mdb:dataQualityInfo/mdq:DQ_DataQuality/mdq:report/mdq:DQ_ConceptualConsistency ISO-1 /mdb:MD_Metadata/mdb:dataQualityInfo/mdq:DQ_DataQuality/mdq:report/mdq:DQ_DomainConsistency ISO-1 /mdb:MD_Metadata/mdb:dataQualityInfo/mdq:DQ_DataQuality/mdq:report/mdq:DQ_FormatConsistency ISO-1 /mdb:MD_Metadata/mdb:dataQualityInfo/mdq:DQ_DataQuality/mdq:report/mdq:DQ_TopologicalConsistency |
| Positional Accuracy Report | Accuracy of the position of features within a spatial reference system. | ISO /gmd:MD_Metadata/gmd:dataQualityInfo/gmd:DQ_DataQuality/gmd:report/gmd:DQ_AbsoluteExternalPositionalAccuracy ISO /gmd:MD_Metadata/gmd:dataQualityInfo/gmd:DQ_DataQuality/gmd:report/gmd:DQ_RelativeExternalPositionalAccuracy ISO /gmd:MD_Metadata/gmd:dataQualityInfo/gmd:DQ_DataQuality/gmd:report/gmd:DQ_GriddedDataPositionalAccuracy ISO-1 /mdb:MD_Metadata/mdb:dataQualityInfo/mdq:DQ_DataQuality/mdq:report/mdq:DQ_AbsoluteExternalPositionalAccuracy ISO-1 /mdb:MD_Metadata/mdb:dataQualityInfo/mdq:DQ_DataQuality/mdq:report/mdq:DQ_RelativeInternalPositionalAccuracy ISO-1 /mdb:MD_Metadata/mdb:dataQualityInfo/mdq:DQ_DataQuality/mdq:report/mdq:DQ_GriddedDataPositionalAccuracy |
| Thematic Accuracy Report | Accuracy of quantitative attributes and the correctness of non-quantitative attributes and of the classifications of features and their relationships. | ISO /gmd:MD_Metadata/gmd:dataQualityInfo/gmd:DQ_DataQuality/gmd:report/gmd:DQ_ThematicClassificationCorrectness ISO /gmd:MD_Metadata/gmd:dataQualityInfo/gmd:DQ_DataQuality/gmd:report/gmd:DQ_NonQuantitativeAttributeCorrectness ISO /gmd:MD_Metadata/gmd:dataQualityInfo/gmd:DQ_DataQuality/gmd:report/gmd:DQ_QuantitativeAttributeAccuracy ISO-1 /mdb:MD_Metadata/mdb:dataQualityInfo/mdq:DQ_DataQuality/mdq:report/DQ_ThematicClassificationCorrectness ISO-1 /mdb:MD_Metadata/mdb:dataQualityInfo/mdq:DQ_DataQuality/mdq:report/DQ_NonQuantitativeAttributeCorrectness ISO-1 /mdb:MD_Metadata/mdb:dataQualityInfo/mdq:DQ_DataQuality/mdq:report/DQ_QuantitativeAttributeAccuracy |
| Temporal Quality Report | Quality of the temporal attributes and temporal relationships of features. | ISO /gmd:MD_Metadata/gmd:dataQualityInfo/gmd:DQ_DataQuality/gmd:report/gmd:DQ_AccuracyOfATimeMeasurement ISO /gmd:MD_Metadata/gmd:dataQualityInfo/gmd:DQ_DataQuality/gmd:report/gmd:DQ_TemporalConsistency ISO /gmd:MD_Metadata/gmd:dataQualityInfo/gmd:DQ_DataQuality/gmd:report/gmd:DQ_TemporalValidity ISO-1 /mdb:MD_Metadata/mdb:dataQualityInfo/mdq:DQ_DataQuality/mdq:report/DQ_AccuracyOfATimeMeasurement ISO-1 /mdb:MD_Metadata/mdb:dataQualityInfo/mdq:DQ_DataQuality/mdq:report/DQ_TemporalConsistency ISO-1 /mdb:MD_Metadata/mdb:dataQualityInfo/mdq:DQ_DataQuality/mdq:report/DQ_TemporalValidity |
| Usability Report | Specific quality information about a dataset’s suitability for a particular application or conformance to a set of requirements. | ISO-1 /mdb:MD_Metadata/mdb:dataQualityInfo/mdq:DQ_DataQuality/mdq:report/mdq:DQ_UsabilityElement |
| Confidence | Trustworthiness of a data quality result. | ISO-1 /mdb:MD_Metadata/mdb:dataQualityInfo/mdq:DQ_DataQuality/mdq:report/mdq:DQ_Confidence |
| Representativity | Degree to which the sample used has produced a result which is representative of the data within the data quality scope. | ISO-1 /mdb:MD_Metadata/mdb:dataQualityInfo/mdq:DQ_DataQuality/mdq:report/mdq:DQ_Representativity/mdq:result |
| Homogeneity | Expected or tested uniformity of the results obtained for a data quality evaluation. | ISO-1 /mdb:MD_Metadata/mdb:dataQualityInfo/mdq:DQ_DataQuality/mdq:report/mdq:DQ_Homogeneity/mdq:result |
| Measure | The type of evaluation | ISO-1 /mdb:MD_Metadata/mdb:dataQualityInfo/mdq:DQ_DataQuality/mdq:report/*/mdq:measure |
| Measure Identifier | Identifier of the measure, value uniquely identifying the measure within a namespace. | ISO /gmd:MD_Metadata/gmd:dataQualityInfo/gmd:DQ_DataQuality/gmd:report/*/gmd:measureIdentification/gmd:MD_Identifier/gmd:code/gco:CharacterString ISO-1 /mdb:MD_Metadata/mdb:dataQualityInfo/mdq:DQ_DataQuality/mdq:report/*/mdq:measure/mdq:DQ_MeasureReference/mdq:measureIdentification |
| Measure Name | Name of the test applied to the data. | ISO /gmd:MD_Metadata/gmd:dataQualityInfo/gmd:DQ_DataQuality/gmd:report/gmd:DQ_QuantitativeAttributeAccuracy/gmd:nameOfMeasure/gco:CharacterString ISO-1 /mdb:MD_Metadata/mdb:dataQualityInfo/mdq:DQ_DataQuality/mdq:report/mdq:DQ_Element/mdq:measure/mdq:DQ_MeasureReference/mdq:nameOfMeasure |
| Measure Description | Description of the measure. | ISO /gmd:MD_Metadata/gmd:dataQualityInfo/gmd:DQ_DataQuality/gmd:report/gmd:DQ_QuantitativeAttributeAccuracy/gmd:measureDescription/gco:CharacterString ISO-1 /mdb:MD_Metadata/mdb:dataQualityInfo/mdq:DQ_DataQuality/mdq:report/mdq:DQ_Element/mdq:measure/mdq:DQ_MeasureReference/mdq:measureDescription |
| Evalulation Method | The procedure used to evaluate the measure. | ISO-1 /mdb:MD_Metadata/mdb:dataQualityInfo/mdq:DQ_DataQuality/mdq:report/mdq:DQ_Element/mdq:evaluationMethod |
| Evalulation Method Type | Type of method used to evaluate quality of the data. | ISO /gmd:MD_Metadata/gmd:dataQualityInfo/gmd:DQ_DataQuality/gmd:report/gmd:DQ_QuantitativeAttributeAccuracy/gmd:evaluationMethodType/gmd:DQ_EvaluationMethodTypeCode ISO-1 /mdb:MD_Metadata/mdb:dataQualityInfo/mdq:DQ_DataQuality/mdq:report/mdq:DQ_Element/mdq:evaluationMethod/mdq:DQ_EvaluationMethod/mdq:evaluationMethodType/mdq:DQ_EvaluationMethodTypeCode |
| Evaluation Method Description | Description of the evaluation method. | ISO /mdb:MD_Metadata/mdb:dataQualityInfo/mdq:DQ_DataQuality/mdq:report/mdq:DQ_QuantitativeAttributeAccuracy/mdq:evaluationMethod/mdq:DQ_FullInspection/mdq:evaluationMethodDescription/gco:CharacterString ISO-1 /mdb:MD_Metadata/mdb:dataQualityInfo/mdq:DQ_DataQuality/mdq:report/mdq:DQ_Element/mdq:evaluationMethod/mdq:DQ_EvaluationMethod/mdq:evaluationMethodDescription |
| Evaluation Procedure | Reference to the procedure information. | ISO /gmd:MD_Metadata/gmd:dataQualityInfo/gmd:DQ_DataQuality/gmd:report/gmd:DQ_QuantitativeAttributeAccuracy/gmd:evaluationProcedure/gmd:CI_Citation ISO-1 /mdb:MD_Metadata/mdb:dataQualityInfo/mdq:DQ_DataQuality/mdq:report/mdq:DQ_Element/mdq:evaluationMethod/mdq:DQ_EvaluationMethod/mdq:evaluationProcedure/cit:CI_Citation |
| Evaluation Reference | Information on documents which are referenced in developing and applying a data quality evaluation method. | ISO-1 /mdb:MD_Metadata/mdb:dataQualityInfo/mdq:DQ_DataQuality/mdq:report/mdq:DQ_Element/mdq:evaluationMethod/mdq:DQ_EvaluationMethod/mdq:referenceDoc |
| Measure Time | Date or range of dates on which a data quality measure was applied. | ISO /gmd:MD_Metadata/gmd:dataQualityInfo/gmd:DQ_DataQuality/gmd:report/gmd:DQ_QuantitativeAttributeAccuracy/gmd:dateTime/gco:DateTime ISO-1 /mdb:MD_Metadata/mdb:dataQualityInfo/mdq:DQ_DataQuality/mdq:report/mdq:DQ_Element/mdq:evaluationMethod/mdq:DQ_EvaluationMethod/mdq:dateTime |
| Result | The output of the evaluation | ISO /gmd:MD_Metadata/gmd:dataQualityInfo/gmd:DQ_DataQuality/gmd:report/*/gmd:result ISO-1 /mdb:MD_Metadata/mdb:dataQualityInfo/mdq:DQ_DataQuality/mdq:report/*/mdq:result |
| Conformance Result | Information about the outcome of evaluating the obtained value (or set of values) against a specified acceptable conformance quality level. | ISO /gmd:MD_Metadata/gmd:dataQualityInfo/gmd:DQ_DataQuality/gmd:report/gmd:DQ_QuantitativeAttributeAccuracy/gmd:result/gmd:DQ_ConformanceResult ISO-1 /mdb:MD_Metadata/mdb:dataQualityInfo/mdq:DQ_DataQuality/mdq:report/mdq:DQ_Element/mdq:result/mdq:DQ_ConformanceResult |
| Quantitative Result | The values or information about the value(s) (or set of values) obtained from applying a data quality measure. | ISO /gmd:MD_Metadata/gmd:dataQualityInfo/gmd:DQ_DataQuality/gmd:report/gmd:DQ_QuantitativeAttributeAccuracy/gmd:result/gmd:DQ_QuantitativeResult ISO-1 /mdb:MD_Metadata/mdb:dataQualityInfo/mdq:DQ_DataQuality/mdq:report/mdq:DQ_Element/mdq:result/mdq:DQ_QuantitativeResult |
| Descriptive Result | Data quality descriptive result. | ISO-1 /mdb:MD_Metadata/mdb:dataQualityInfo/mdq:DQ_DataQuality/mdq:report/mdq:DQ_Element/mdq:result/mdq:DQ_DescriptiveResult |
| Coverage Result | Result organising the measured values as a coverage. | ISO-1 /mdb:MD_Metadata/mdb:dataQualityInfo/mdq:DQ_DataQuality/mdq:report/mdq:DQ_Element/mdq:result/mdq:QE_CoverageResult |
xPath Note: The xPaths included in this table use several wildcards. // means any path, so //gmd:CI_ResponsibleParty indicates a gmd:CI_ResponsibleParty anywhere in an XML file. /*/ indicates a single level with several possible elements. This usually indicates one of several concrete realizations of an abstract object. For example /*/gmd:identificationInfo could be gmd:MD_Metadata/gmd:identificationInfo or gmi:MI_Metadata/gmd:identificationInfo and gmd:identificationInfo//*/gmd:descriptiveKeywords could be gmd:identificationInfo/gmd:MD_DataIdentification/gmd:descriptiveKeywords or gmd:identificationInfo/srv:SV_ServiceIdentification/gmd:descriptiveKeywords. Fit: The fit of the dialect path with the concept is estimated on a scale of 1 = excellent two-way fit, 2 = one-way fit or some other problem, 3 - extension required.
