Class Name: Data Quality

Superclass - <SEDRIS Abstract Base>

Subclasses

Definition

An instance of this DRM class provides a [CSDGM]-compliant description of the level of quality of the information contained in the aggregating SEDRIS object.

Primary Page in DRM Diagram:

• 20

Secondary Pages in DRM Diagram:

• 1
• 2
• 3
• 6
• 8
• 19

Example

1. Description of the level of data quality for the <Feature> instances within a particular thematic layer, such as vegetation.

FAQs

How does the data quality of a SEDRIS object depend on the data quality of the sources used in its creation?

Each of the processing steps that is performed in the creation of a SEDRIS object has some effect on the quality of the result, but the individual impacts of the processing steps are not well understood, let alone the combined impacts.

How does the data quality of a <Transmittal Root>, or any other SEDRIS object within a transmittal, depend on the data quality of its components?

The data quality of the whole is certainly no better than the worst of its components.

Constraints

Composed of (two-way metadata)

• one or more <Process> instances
• zero or more <Source> instances

Component of (two-way)

• zero or more <Attribute Set> instances
• zero or more <Data Table> instances
• zero or more <Environment Root> instances
• zero or more <Feature> instances
• zero or more <Feature Model> instances
• zero or more <Geometry Hierarchy> instances
• zero or more <Geometry Model> instances
• zero or more <Model> instances
• zero or one <Transmittal Root> instance

Inherited Field Elements

Field Elements

Notes

Fields Notes

fictional

 SE_TRUE if ANY aspect of the data content INTENTIONALLY deviates from
 the available source data, i.e., was 'made up' out of thin air;
 SE_FALSE otherwise

property_accuracy

 accuracy statement for <Property Values> attached to <Features> and
 <Geometry>, or contained in <Property Tables> (Optional)

logical_consistency

 statement of logical consistency (Optional)

completeness

 statement of completeness (Optional)

abs_horiz_pos_accuracy

 absolute horizontal positional accuracy (Optional)

rel_horiz_pos_accuracy

 relative horizontal positional accuracy (Optional)

abs_vert_pos_accuracy

 absolute vertical positional accuracy (Optional)

rel_vert_pos_accuracy

 relative vertical positional accuracy (Optional)