| URI | http://www.w3.org/ns/ssn/ |
| abstract | SSN follows a horizontal and vertical modularization architecture by including a lightweight but self-contained core ontology called SOSA (Sensor, Observation, Sample, and Actuator) for its elementary classes and properties. |
| audience | The initial SSN was developed with ontology engineers in mind as the primary audience. Due to the widespread adoption of SSN, the increasing role of citizen science, the strong focus on lightweight vocabularies by the Linked Data community, and vocabularies such as Schema.org, the ontology was streamlined. The new SSN introduces additional classes and relations on top of SOSA to model the capabilities of sensors and actuators, the compositionality of systems, and so forth to suit more complex needs or cases in which more provenance data is required, e.g., to improve reproducibility. |
| bug Database | https://github.com/w3c/sdw/issues |
| copyright Holder | W3C (https://www.w3.org/)(https://ror.org/0059y1582), OGC (http://www.opengeospatial.org/)(https://ror.org/00fsdxs93) |
| deprecated | false |
| endpoint |  |
| Example of use | https://w3c.github.io/sdw/ssn-usage/ |
| example Identifier | http://www.w3.org/ns/ssn/Stimulus |
| Creators | W3C/OGC Spatial Data on the Web Working Group (https://www.w3.org/2017/sdwig/) |
| has Formality Level | http://w3id.org/nkos/nkostype#ontology |
| Ontology Syntax | http://www.w3.org/ns/formats/Turtle |
| has Part | http://data.agroportal.lirmm.fr/ontologies/SOSA |
| has Prior Version | http://data.agroportal.lirmm.fr/ontologies/SSN/submissions/1 |
| is Of Type | http://omv.ontoware.org/2005/05/ontology#DomainOntology |
| keywords | sensor, observation |
| known Usage | With their different scope and different degrees of axiomatization, SSN and SOSA are able to support a wide range of applications and use cases, including satellite imagery, large-scale scientific monitoring, industrial and household infrastructures, social sensing, citizen science, observation-driven ontology engineering, and the Web of Things. See also: https://w3c.github.io/sdw/ssn-usage/ |
| mailing List | local:public-sdw-wg@w3.org |
| Metadata vocabulary used | local:local |
| modification Date | 2011-01-01T00:00:00+00:00 |
| Natural Language | |
| notes | New modular version of the SSN ontology. 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. In particular, (a) the scope is extended to include actuation and sampling; (b) the core concepts and properties are factored out into the SOSA ontology. The SSN ontology imports SOSA and adds formal axiomatization consistent with the text definitions in SOSA, and adds classes and properties to accommodate the scope of the original SSN ontology. |
| preferred Namespace Prefix | ssn |
| preferred Namespace Uri | http://www.w3.org/ns/ssn/ |
| publisher | W3C (https://www.w3.org/), OGC (http://www.opengeospatial.org/) |
| Release date | 2009-01-01T00:00:00+00:00 |
| repository | https://github.com/w3c/sdw |
| URI Lookup Endpoint | http://data.agroportal.lirmm.fr/search?ontologies=SSN&require_exact_match=true&q= |
| use Guidelines | Please report any errors to the W3C Spatial Data on the Web Working Group via the SDW WG Public List public-sdw-wg@w3.org |
| use Imports | http://www.w3.org/ns/sosa/ |
| version | New modular version of the SSN ontology. 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. In particular, (a) the scope is extended to include actuation and sampling; (b) the core concepts and properties are factored out into the SOSA ontology. The SSN ontology imports SOSA and adds formal axiomatization consistent with the text definitions in SOSA, and adds classes and properties to accommodate the scope of the original SSN ontology. |
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