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Horizontal Coordinate Metadata (ZI010)

DGIF baseline 2026-1, the latest. Earlier baselines: timemap.

RDF: zi010.ttl

Name

HorizCoordMetadata

Kind

Type

Definition

A modeling entity collecting information about the basis for, and quality of, the horizontal coordinates and/or horizontal dimensional measures of the digital representation of a feature and/or attribute.

Description

For example, the spatial reference frame for a horizontal position or the accuracy of that position value.

Accepted

2013-10-18

Attributes

• AHA Absolute Horizontal Accuracy (90%) — multiplicity 0..1; datatype HorizPosAccuracyReason
• AH5 Absolute Horizontal Accuracy (95%) — multiplicity 0..1; datatype HorizPosAccuracyReason
• ALX Absolute Latitude Accuracy — multiplicity 0..1; datatype HorizPosAccuracyReason
• AOX Absolute Longitude Accuracy — multiplicity 0..1; datatype HorizPosAccuracyReason
• HZD Geodetic Datum — multiplicity 0..1; datatype geodeticDatum
• ACC Horizontal Accuracy Category — multiplicity 0..1; datatype HorizCoordMetadata_horizAccuracyCategoryMeta; values: ACC_1 Accurate, ACC_2 Approximate, ACC_3 Doubtful, ACC_7 Precise

Inverse associations

• geometryInfo (inverse of GeometryHorizCoordMetadata) → ZI029 Geometry Information (1..*)

RWOI terms naming it

• RWO_01626 Horizontal Coordinate Metadata

Source: DGIF 2026-1 QEA model, DGIWG. Standard: DGIWG 206-3. Licence: CC BY 4.0, © DGIWG.