This is the main OGC-NA repository. It will hold the following:

• definitions
• draft policies and procedures

Approved policies and procedures are published at https://www.ogc.org/standards/na

The OGC Definitions Server is an online registry that allows for the management of resources such as terms, definitions, vocabularies and other related resources that are defined in OGC standards. The resources are recorded in registers that conform to Linked Data principles and are published through the definitions server. The definitions server provides a resolvable HTTP URI for each registered resource, thereby making it possible to uniquely identify the resource. The definitions server is intended to facilitate semantic interoperability between different systems that use OGC standards.

The OGC Definitions Server can be accessed at http://www.opengis.net/def/

More information about the OGC Definitions Server can be found at https://www.ogc.org/def-server

Presently, the 'OGC Naming Authority registers' of the Definitions Server include among others Sensor Model registers and a list of authorities for definitions endorsed by the OGC, while the 'OGC definitions' list Observation Types and includes the Cadastre and Land Administration Thesaurus.

The content of this repository is copyrighted by the Open Geospatial Consortium (OGC) and may be licensed for designated purposes.

Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. The Open Geospatial Consortium shall not be held responsible for identifying any or all such patent rights.

Recipients of this document are requested to submit, with their comments, notification of any relevant patent claims or other intellectual property rights of which they may be aware that might be infringed by any implementation of the standard set forth in this document, and to provide supporting documentation.