This ontology extends the SAREF ontology for the Agricultural domain. This work has been developed in the context of the STF 534 (https://portal.etsi.org/STF/STFs/STFHomePages/STF534.aspx), which was established with the goal to create three SAREF extensions, one of them for the Agricultural domain.

# SAREF extension for Agriculture

s4agri
https://w3id.org/def/saref4agri#
0.1
The WGS84 altitude of a SpatialThing (decimal meters above the local reference ellipsoid).
altitude
The WGS84 latitude of a SpatialThing (decimal degrees).
latitude
The WGS84 longitude of a SpatialThing (decimal degrees).
longitude
deployed on platform
deployed system
has deployment
has feature of interest
has property
host
in deployment
is feature of interest of
is hosted by
is property of
measurement made by
A relationship between a certain entity (e.g., a device) and the task it accomplishes
accomplishes
A relationship between a command and a state
acts upon
consists of
controls property
A relationship between an entity (such as a function) and a command
has command
A relationship identifying the type of function of a device
has function
A relationship indentifying the task accomplished by a certain entity (e.g., a device)
is accomplished by
A relationship between a command and a function.
is command of
is controlled by device
is measured by device
is measured in
makes measurement
measures property
relates to measurement
relates to property
has creation date
has expiration date
has last update date
has description
has name
has timestamp
has value
Deployment
WARNING! This class might be moved to the SAREF ontology
Feature of interest
Platform
System
1
1
A directive that a device must support to perform a certain function. A command may act upon a state, but does not necessarily act upon a state. For example, the ON command acts upon the ON/OFF state, but the GET command does not act upon any state, it simply gives a directive to retrieve a certain value. We propose here a list of commands that are relevant for the purpose of SAREF, but this list can be extended.
Command
1
The functionality necessary to accomplish the task for which a Device is designed. A device can be designed to perform more than one function. Functions can be structured in categories (subclasses) that reflect different points of view, for example, considering the specific application area for which a function can be used (e.g., light, temperature, motion, heat, power, etc.), or the capability that a function can support (e.g., receive, reply, notify, etc.), and so forth.
Function
A saref:Property related to some measurements that are characterized by a certain value that is measured in a humidity unit
Humidity
1
1
1
1
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.
Measurement
An aspect of an entity that can be observable by a sensor.
Anything that can be sensed, measured or controlled in households, common public buildings or offices. We propose here a list of properties that are relevant for the purpose of SAREF, but this list can be extended.
Property
Property
The state in which a device can be found, e.g, ON/OFF/STANDBY, or ONLINE/OFFLINE. We propose here a list of states that are relevant for the purpose of SAREF, but this list can be extended.
State
1
The goal for which a device is designed (from a user perspective). For example, a washing machine is designed for the task of washing. We propose here a list of tasks that are relevant for the purpose of SAREF, but this list can be extended.
Task
A saref:Property related to some measurements that are characterized by a certain value that is measured in a temperature unit (degree_Celsius, degree_Fahrenheit, or degree_kelvin)
Temperature
A saref:Property that allows to specify the time concept in terms of instants or intervals according to the imported W3C Time ontology.
Time
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.
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 SAREF, but this list can be extended, also using some other ontologies rather than the Ontology of units of Measure (OM).
Unit of measure
Unit of measure