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| Goal | Audit Question | Audit Definition | Audit Method | Audit Frequency & Reports | Responsibility & Reporting |
| Accuracy | Examine level of data accuracy in line with the specified application/use | Does the user understand accuracy limitations of GIS data | Spatial/positional accuracy Temporal accuracy Thematic accuracy | Documentary analysis: ● Accuracy statement ● Accuracy report Comparison with an independent source of higher accuracy | Collection stage Prior to data use Upon Purchase Daily productions After ● Transformation ● Conversion ● Update ● Modification | GIS User GIS Program Manager |
| Lineage | Establish history of datasets being subjected for GIS application | Is data source and its transformations documented | Data history Data attributes Map legends Map libraries Database system Data Projection | Documentation report Spatial interactions through overlays Track history from database system | Prior to data use Upon Purchase Daily productions After ● Transformation ● Conversion ● Update ● Modification | GIS user GIS Program Manager |
| Currency | Determine data timelines | Is currency status appropriate for the specified application | Metadata Capture date Frequency of update Revision status Attributes value age | Validate data timeline contents with available metadata | Daily productions Prior to data use Frequent data updates and revision | GIS user GIS Program Manager |
| Coverage, Adequacy & Reliability | Access the data adequacy and appropriateness to meet specific needs | Is the data adequate & reliable in meeting product needs | Spatial extent Availability limitations Access conditions Temporal extent Adequate schema | Data catalogues Product catalogues Metadata catalogues Adequacy report Compare project area of interest | Daily productions Routine data checks (weekly, monthly, quarterly or annually) | GIS user GIS Program Manager |
| Completeness | Establish the fitness for use and wholeness of data for accurate and sufficient GIS application. | Is the data schema suitable for consumption | Completeness in ● Spatial/space ● Temporal/time ● Thematic/ attribute ● Feature ● Coverage ● Scope ● Format | Schema checks on data values and formats Complete inclusion of features & attributes Quality control Compliance testing User’s feedback Ground Truthing | Daily productions Scheduled quality control Program (weekly, monthly, quarterly or annually) | GIS user GIS Program Manager |
| Consistency | Assess the contradiction in the GIS database | Is there internal validity of the dataset to ensure correctness of outputs | Data adherence to standards Data adherence to logical rules of data structure, attributes and relationships | Consistency report to validate data conformance to standards Validate geometry conformance to topological rules Check attribute redundancy Check for validity of domain & data types Check validity of geometries Implement OGC and ISO standard | High frequency checks during daily productions | GIS user GIS Program Manager |