Notation and namespaces
The classes and properties described in this document are denoted using Compact URIs [[curie]].
- These classes and properties are put into the RDF namespace for SOSA, i.e. http://www.w3.org/ns/sosa/ which is used for the core elements of SSN [[vocab-ssn]], since the new classes and properties are expected to be used in the same context.
+ These classes and properties are put into the RDF namespace for SOSA, i.e., http://www.w3.org/ns/sosa/ which is used for the core elements of SSN [[vocab-ssn]], since the new classes and properties are expected to be used in the same context.
However, these extensions to SOSA/SSN are packaged in a separate graph (ontology file) which is denoted http://www.w3.org/ns/ssn/ext/, and is currently available from the GitHub repository.
Actuations
Overview
and properties that are specifically related to modeling Actuations.
+ Specification
sosa:Actuation
-IRI: http://www.w3.org/ns/sosa/Actuation
-an OWL Class
- - Actuation - - An Actuation carries out an - (Actuation) Procedure to change the value of a Property using an Actuator. --
- In this context, -
- - hasResult shall indicate the expected value of the Property at the completion of the Actuation - -
-
- relatedObservation SHOULD be - used to link to an associated Observation or ObservationCollection that monitors the actuated - property to verify that the result value has been obtained -
-
- An Actuation concerns a single Property of a single FeatureOfInterest. - Changes to multiple properties, or other combinations of Actuations, may be described in an - ActuationCollection. -
-
+
+ IRI: http://www.w3.org/ns/sosa/Actuation +
++ an OWL Class +
+
+ Actuation -
+ An Actuation carries out an
+ (Actuation) Procedure to change the value of a Property using an Actuator.
+
+
+ In this context,
+
+ - hasResult shall indicate the expected value of the Property at the completion of the Actuation
+
+
+ relatedObservation SHOULD be + used to link to an associated Observation or ObservationCollection that monitors the actuated + property to verify that the result value has been obtained +
++ An Actuation concerns a single Property of a single FeatureOfInterest. + Changes to multiple properties, or other combinations of Actuations, may be described in an + ActuationCollection. +
+Alternatively, applications may choose to encapsulate complexity by defining a complex property with - multiple individual components, and a corresponding complex result (e.g. a vector). This approach is not + multiple individual components, and a corresponding complex result (e.g., a vector). This approach is not prohibited by the SSN Ontology, but the details are beyond the scope of SSN.
-- relatedObservation SHOULD be used - to link to an associated Observation or ObservationCollection that monitors the actuated - property to verify that the result value has been obtained.. - + +
+ relatedObservation SHOULD be used + to link to an associated Observation or ObservationCollection that monitors the actuated + property to verify that the result value has been obtained.. + +
++ The different time-properties on a sosa:Actuation support + the description of plans, forecasts and predictions as well as descriptions of various historical scenarios. + See Temporal properties for patterns related to these.
| The activity of automatically closing a window if the temperature in a room drops below 20 degree Celsius. - The activity is the Actuation and the device that - closes the window is the Actuator. - The Procedure is the rule, plan, or specification - that defines the conditions that triggers the Actuation, here a - drop in temperature. + The activity is the Actuation and the device that closes the + window is the Actuator. + The Procedure is the rule, plan, or specification that may + define the condition that triggers the Actuation (a drop in + temperature). | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Example | -... TODO ... | -||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Sub class of |
@@ -335,20 +348,28 @@ sosa:ActuationCollectiononclick="hide_ssn(true,this.parentElement.parentElement.parentElement.parentElement);return false;">Hide additional SSN axioms] - [Back to module overview] - [Back to top] + [Back to module overview] + [Back to top]sosa:Actuator-IRI: http://www.w3.org/ns/sosa/Actuator -an OWL Class ++ IRI: http://www.w3.org/ns/sosa/Actuator + ++ an OWL Class + +
+ Actuator -
+ A device or system that is used by, or implements, an (Actuation) Procedure that changes the value of a Property An Actuator may have a geographic location. + See Location and Geometry for patterns to describe this. - Actuator - - A device or system that is used by, or implements, an (Actuation) Procedure that changes the value of a Property
sosa:actsOnProperty-IRI: http://www.w3.org/ns/sosa/actsOnProperty -an OWL Object Property -The 2017 edition defined the term ActuatableProperty as the range of + IRI: http://www.w3.org/ns/sosa/actsOnProperty + ++ an OWL Object Property + ++ The 2017 edition defined the term ActuatableProperty as the range of sosa:actsOnProperty. - That specialization of sosa:Property is deprecated in this 2024 edition. + That specialization of sosa:Property is deprecated in this 2025 edition. + ++ acts on property - + Relation between an Actuation and the + sosa:Property it acted upon. - - acts on property - - Relation between an Actuation and the - sosa:Property it acted upon. -
sosa:isActedOnBy-IRI: http://www.w3.org/ns/sosa/isActedOnBy -an OWL Object Property -The 2017 edition defined the term ActuatableProperty as the domain of sosa:isActedOnBy. - That specialization of sosa:Property is deprecated in this 2024 edition. + + IRI: http://www.w3.org/ns/sosa/isActedOnBy + ++ an OWL Object Property + ++ The 2017 edition defined the term ActuatableProperty as the domain of + sosa:isActedOnBy. + That specialization of sosa:Property is deprecated in this 2025 edition. + ++ is acted on by - + Relation between a + Property and an + Actuator that may change its state. - - is acted on by - - Relation between a - Property and an - Actuator that may change its state.sosa:madeActuation-IRI: http://www.w3.org/ns/sosa/madeActuation -an OWL Object Property - - made actuation - - Relation between an Actuator and an - Actuation made it.+ + IRI: http://www.w3.org/ns/sosa/madeActuation + ++ an OWL Object Property + ++ made actuation - + Relation between an Actuator and an + Actuation made it. + Common termsOverview-The Common module defines terms that are common across Sensing, Observation, Sampling and Actuation + + The Common module defines terms that are common across Sensing, Observation, Sampling and Actuation applications. Some of the classes in the Common module are used as-is in applications (FeatureOfInterest, Platform, Deployment). @@ -11,12 +11,13 @@ Overview(Property, Procedure, Execution, System). They all support the description of Actuation, Observation and Sampling instances using patterns that are common across the applications. -The description of the Common module is organized into the following sections: ++ The description of the Common module is organized into the following sections: OverviewInterest and Properties.
+ - The relationship between sosa:FeatureOfInterest, and types or classes - defined in a domain model is explained below in Common Modeling Questions - Specification-This section introduces the following classes and properties: ++ This section introduces the following classes and properties: sosa:FeatureOfInterest @@ -63,19 +62,34 @@ Specificationsosa:FeatureOfInterest-IRI: http://www.w3.org/ns/sosa/FeatureOfInterest -an OWL Class ++ IRI: http://www.w3.org/ns/sosa/FeatureOfInterest + ++ an OWL Class + ++ Feature Of Interest - + The thing that is the target of the Execution, + i.e., whose property is being estimated or + calculated in the course of an Observation to arrive at a + result, or whose property is being manipulated by an Actuator, + or which is being sampled or transformed in an act of Sampling. + ++ The relationship between sosa:FeatureOfInterest, + and types or classes defined in a domain model is explained below in + Domain types and FeatureOfInterest + ++ A Feature of Interest may have a geographic location. + See Location and Geometry for patterns to describe this. - Feature Of Interest - - The thing that is the target of the Execution, - i.e. whose property is being estimated or - calculated in the course of an Observation to arrive at a - result, or whose property is being manipulated by an Actuator, - or which is being sampled or transformed in an act of Sampling.
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