rdfs:comment"A Key Performance Indicator (KPI) is a type of performance measurement. KPIs evaluate the success of an organization or of a particular activity in which it engages. (Definition taken from FIWARE)"@en;
rdfs:comment"A device responsible for moving or controlling a mechanism or system."@en;
rdfs:label"Actuator"@en.
### https://saref.etsi.org/core/Device
saref:Devicerdf:typeowl:Class;
rdfs:subClassOf[rdf:typeowl:Restriction;
owl:onPropertysaref:controlsProperty;
owl:allValuesFromsaref:Property
],
[rdf:typeowl:Restriction;
owl:onPropertysaref:makesMeasurement;
owl:allValuesFromsaref:Measurement
],
[rdf:typeowl:Restriction;
owl:onPropertysaref:measuresProperty;
owl:allValuesFromsaref:Property
];
rdfs:isDefinedBy<https://saref.etsi.org/core/>;
rdfs:comment"A tangible object designed to accomplish a particular task in households, common public buildings or offices. In order to accomplish this task, the device performs one or more functions. For example, a washing machine is designed to wash (task) and to accomplish this task it performs a start and stop function. Devices can be structured in categories (subclasses) that reflect the different domain in which a device is used, e.g., smart appliances domain (subclass FunctionRelated) vs. building domain (subclass BuildingRelated) vs. smart grid domain (subclass EnergyRelated). New categories can be defined,if needed, to reflect other differences, for example different points of view, such as the point of view of the device's user vs. the point of view of the device's manufacturer. We propose a list of devices that are relevant for the purpose of SAREF, but this list can be extended."@en;
rdfs:comment"Represents the measured value made over a property. It is also linked to the unit of measure in which the value is expressed and the timestamp of the measurement."@en;
rdfs:isDefinedBy<https://saref.etsi.org/core/>;
rdfs:label"Measurement"@en.
### https://saref.etsi.org/core/Meter
saref:Meterrdf:typeowl:Class;
rdfs:subClassOfsaref:Sensor;
rdfs:comment"A device built to accurately detect and display a quantity in a form readable by a human being. Further, a device of category saref:Meter that performs a saref:MeteringFunction."@en;
rdfs:isDefinedBy<https://saref.etsi.org/core/>;
rdfs:label"Meter"@en.
### https://saref.etsi.org/core/Property
saref:Propertyrdf:typeowl:Class;
rdfs:subClassOf[rdf:typeowl:Restriction;
owl:onPropertysaref:isControlledByDevice;
owl:allValuesFromsaref:Device
],
[rdf:typeowl:Restriction;
owl:onPropertysaref:isMeasuredByDevice;
owl:allValuesFromsaref:Device
],
[rdf:typeowl:Restriction;
owl:onPropertysaref:relatesToMeasurement;
owl:allValuesFromsaref:Measurement
];
rdfs:isDefinedBy<https://saref.etsi.org/core/>;
rdfs:comment"An aspect of an entity that can be observable by a sensor."@en;
rdfs:label"Property"@en.
### https://saref.etsi.org/core/Sensor
saref:Sensorrdf:typeowl:Class;
rdfs:subClassOfsaref:Device;
rdfs:comment"A device that detects and responds to events or changes in the physical environment such as light, motion, or temperature changes. A device that has category saref:Sensor and performs a saref:SensingFunction."@en;
rdfs:isDefinedBy<https://saref.etsi.org/core/>;
rdfs:label"Sensor"@en.
### https://saref.etsi.org/core/UnitOfMeasure
saref:UnitOfMeasurerdf:typeowl:Class;
rdfs:comment"The unit of measure is a standard for measurement of a quantity, such as a Property. For example, Power is a property and Watt is a unit of power that represents a definite predetermined power: when we say 10 Watt, we actually mean 10 times the definite predetermined power called \"watt\". Our definition is based on the definition of unit of measure in the Ontology of units of Measure (OM). We propose here a list of some units of measure that are relevant for the purpose of the Smart Appliances ontology, but this list can be extended."@en;