Ontologies
SOSA

Sensor, Observation, Sample, and Actuator (SOSA) Ontology (SOSA)

OWL
View license
Last submission date April 17, 2026
Summary
Classes
Properties
Instances
Notes
Mappings
Resources
Visualization
Widgets
SPARQL

General information

SOSA is the lightweight core of the W3C and OGC Semantic Sensor Network stack. It models observations, sensors, samples, actuators, procedures, results, and features of interest for interoperable measurement-event data., This ontology is based on the SSN Ontology by the W3C Semantic Sensor Networks Incubator Group (SSN-XG), together with considerations from the W3C/OGC Spatial Data on the Web Working Group. See more...
Initial created on April 17, 2017. For additional information, contact Mat Portal Metrology Import.
Svg Vector Icons : http://www.onlinewebfonts.com/icon
Export all metadata

Metrics

FAIR score
Beta

Total score : 237.0 ( 49.0%)
See details

Submissions

Identifiers

URI

http://www.w3.org/ns/sosa/
http://www.w3.org/ns/sosa/

MatPortal URI

https://dev.matportal.org/ontologies/SOSA
https://dev.matportal.org/ontologies/SOSA

Dates

Creation date

April 17, 2017

Submission date

April 17, 2026

Agents

Contact

MatPortal Metrology Import

Other links

Projects and usage information

Methodology and provenance

The fields Knowledge representation paradigm, Engineering methodology, Created with, Accrual method, Accrual periodicity... are empty

Community

Repository

https://github.com/w3c/sdw-sosa-ssn
https://github.com/w3c/sdw-sosa-ssn

Groups

Content

Preferred namespace URI

http://www.w3.org/ns/sosa/
http://www.w3.org/ns/sosa/

Preferred namespace prefix

sosa

Visits

We are still collecting data for SOSA

Views of SOSA

No views available for SOSA.