This ontology describes sensors and observations, and related concepts. It does not describe domain concepts, time, locations, etc. these are intended to be included from other ontologies via OWL imports. @en
(2016-12-07) Ghislain Atemezing: New version to be published by the W3C SDW Group at http://www.w3.org/ns/ssn/.
(2020-12-10) Ghislain Atemezing: Added the new reference to W3C namespace. Not that this ontology was originally developed in 2009-2011 by the W3C Semantic Sensor Networks Incubator Group (SSN-XG). For more information on the group's activities see: http://www.w3.org/2005/Incubator/ssn/. The ontology was revised and modularized in 2015-2017 by the W3C/OGC Spatial Data on the Web Working Group, see: https://www.w3.org/2015/spatial/wiki/Semantic_Sensor_Network_Ontology.