ARINC 814 defines an XML encoding and compression standard for aviation. It is based on the Open Geospatial Consortium (OGC) Binary XML document. Binary XML encoding is extended in a way that is both flexible and robust. Compression is added on top of the binary encoding. ARINC 814 is expected to be used with Aeronautical Databases, in particular, ARINC Specification 813: Embedded Interchange Format for Terrain Databases, ARINC Specification 815: Embedded Interchange Format for Obstacle Databases, and ARINC Specification 816: Embedded Interchange Format for Airport Mapping Database.