Components of an Observation from the O&M model

Observation

An Observation is an event whose result is an estimate of the value of some property of a feature-of-interest, obtained using a specified procedure.

Feature of Interest

A Feature is a feature of any type (ISO 19109, ISO 19101).  For example, the Feature  body of water has properties, such as temperature and salinity. The relation is named carrierOfCharacteristics, which associates the class Feature with a collection of properties. Note that a property is always related to a feature. More discussion about featureOfInterest is provided in section 9.2.

Procedure

SensorML provides the model to describe systems and sensors. A system is a process, and a sensor is a system. We augment the procedure class by adding concrete examples of procedures, such as observingSystem, device, platform, sensor and detector.

Result

The result, based on ISO 11404, is specified by SWECommon, where DataArrays and DataRecords are defined in a more general sense. These contain Record Definitions where the field of the record is provided ( i.e. property of the featureOfInterest) as well as other metadata related to that record (units, datums, quality flags etc..)

Revision History

TODOs