The OGC seeks comment on SensorML 2.0 standard

Please note: This Request is closed. The documents listed below have been adopted by the OGC Technical and Planning Committee. These specifications are under control of the Standards Working Group and will be released after the edits and revisions. For the most current version please check our Standards Page.
Closing Date: 
Wednesday, 5 December 2012 05:00 UTC

The Open Geospatial Consortium (OGC®) seeks public comment on the candidate OGC SensorML 2.0 Encoding Standard.

SensorML is a machine-readable language for describing sensors, actuators, and processes surrounding measurement. SensorML is a key component of the OGC Sensor Web Enablement (SWE) suite of standards.

SensorML 2.0 includes the following changes to the previous version 1.0.1, which was approved in 2007:

  •  Separation of SWE Common Data as a separate standard
  •  More tightly defined rules
  •  Conformance classes allowing for incremental support of SensorML in software and derived encodings
  •  A host of examples provided at initial release of the specification.


In addition, SensorML 2.0 includes the following new or improved features:

  •  Support for property extension using external schema
  •  Better-defined support for positions and dynamic state (e.g. location, orientation, velocity, and acceleration)
  •  Better support for inheritance allowing for compact descriptions of deployed devices and processes
  •  Direct access to real-time values and data streams
  •  Better support for multiplexed data streaming (i.e. streams with disparate messages).

SensorML 2.0 supports the descriptions of things within the Internet of Things (IoT) and Web of Things (WoT) by providing a common standard for sensors ("things the measure"), actuators ("things that act"), and processors ("things that calculate"). Efforts are also underway to take advantage of the complementary role that SensorML 2.0 can play with the OGC City Geography Markup Language (CityGML) Encoding Standard and the candidate OGC standard IndoorGML.

The OGC SensorML 2.0 Encoding Standard Evaluation Package is free and can be downloaded below.


Comments can be submitted to a dedicated email reflector for a thirty day period ending on the "Close request date" listed above, Comments received will be consolidated and reviewed by OGC members for incorporation into the document. Please submit your comments using the following link: requests [at] (Click here to submit comments) The link provided above should include a standard template in the message body. If the preloaded message body does not work properly using your mail client, please refer to the following template for the message body: Comments Template


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