Class Name: Data Quality

Superclass - <SEDRIS Abstract Base>

Subclasses

Definition

An instance of this DRM class specifies an ISO 19115-compliant description of the level of quality of the information contained in the aggregating DRM 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 Representation> instances within a particular thematic layer, such as vegetation.

FAQs

How does the data quality of a DRM 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 DRM 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> instance, or any other DRM 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

• <<Publishable Object>>

Composed of (two-way)

• zero or one <Lineage> instance¹

Component of (two-way)

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

Inherited Field Elements

Field Elements

Notes

Composed of Notes

Lineage

Fields Notes

fictional

The value of the fictional field is SE_TRUE if any aspect of the data content intentionally deviates from the available source data; that is, it was constructed out of thin air. The fictional field is SE_FALSE otherwise.

field_accuracy

The field_accuracy field specifies a statement of field accuracy.

logical_consistency

The logical_consistency field specifies an optional statement of logical consistency.

completeness

The completeness field specifies an optional statement of completeness.

abs_horiz_pos_accuracy

The abs_horiz_pos_accuracy field specifies an optional statement about absolute horizontal accuracy. If it is desired to specify absolute horizontal accuracy numerically, a <Property Value> instance with meaning field set to EAC_ABSOLUTE_HORIZONTAL_ACCURACY may be attached as a component of the aggregating DRM object.

rel_horiz_pos_accuracy

The rel_horiz_pos_accuracy field specifies an optional statement about relative horizontal accuracy. If it is desired to specify relative horizontal accuracy numerically, a <Property Value> instance with meaning field set to EAC_RELATIVE_HORIZONTAL_ACCURACY may be attached as a component of the aggregating DRM object.

abs_vert_pos_accuracy

The abs_vert_pos_accuracy field specifies an optional statement about absolute vertical accuracy. If it is desired to specify absolute vertical accuracy numerically, a <Property Value> instance with meaning field set to EAC_ABSOLUTE_VERTICAL_ACCURACY may be attached as a component of the aggregating DRM object.

rel_vert_pos_accuracy

The rel_vert_pos_accuracy field specifies an optional statement about relative vertical accuracy. If it is desired to specify relative vertical accuracy numerically, a <Property Value> instance with meaning field set to EAC_RELATIVE_VERTICAL_ACCURACY may be attached as a component of the aggregating DRM object.