The GML Profile for aeronautical data is limited to 2D elements and includes only the features necessary for encoding geometries of type point, line/curve and polygon/surface (outer boundaries only).
The following components of GML are out of scope for the AIXM GML Profile: Topology, Linear Referencing, Coverages.
This additional GML component necessary to the ISO 19139 (gco /basicTypes.xsd), which is imported in the GML and AIXM metadata, needs additional types. These types are not included in this profile.
AIXM is built on a foundation of ISO standards, such as ISO 19107 (Spatial Schema), ISO 19108 (Temporal Schema), and ISO 19136 (Geography Markup Language, GML).
These standards facilitate the interoperable exchange of spatial information in and between various application domains.
Use of Geography Markup Language (GML) for Aviation Data