 om:bar - The bar is a unit of pressure defined as 100 000 pascal. |
| om:degree Celsius - The degree Celsius is a unit of temperature defined as 1 kelvin. |
| om:degree Fahrenheit - The degree Fahrenheit is a unit of temperature defined as 5.555556e-1 kelvin. |
| om:euro |
| om:Great Britain pound sterling |
| om:kelvin - The kelvin is a unit of temperature defined as 1/273.16 of the thermodynamic temperature of the triple point of water. |
| om:kilowatt |
| om:kilowatt hour - The kilowatt hour is a unit of energy equal to 1,000 watt-hours, or 3.6 megajoules. |
| om:lux - The lux is a unit of illuminance defined as lumen divided by square metre = candela times steradian divided by square metre. |
| om:pascal - The pascal is a unit of pressure and stress defined as newton divided by square metre = joule divided by cubic metre = kilogram divided by metre second squared. |
| om:United_States_dollar |
| om:watt - The watt is a unit of power defined as joule divided by second = newton times metre divided by second = volt times ampere = kilogram times square metre divided by second to the power 3. |
 saref:accomplishes - A relationship between a certain entity (e.g., a device) and the task it accomplishes |
| saref:acts upon - A relationship between a command and a state |
 saref:Actuating function - A function that allows to transmit data to actuators, such as level settings (e.g., temperature) or binary switching (e.g., open/close, on/off) |
| saref:Actuator - A device responsible for moving or controlling a mechanism or system by performing an actuating function |
| saref:Appliance - An electrical/mechanical machine that accomplish some household functions, such as cleaning or cooking |
| saref:Building related - A category that includes devices as described by building related data models, such as IFC and FIEMSER |
| saref:Cleaning - A type of task for which a device is designed |
| saref:Close - The value CLOSE. It is used to instantiate different classes such as the CloseCommand class and CloseState class, for example. |
| saref:Close command - A type of command |
| saref:Close state - The state of a device that is CLOSE |
| saref:Coal - A type of commodity |
| saref:Comfort - A type of task for which a device is designed |
| saref:Command - 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. |
| saref:Commodity - A marketable item for which there is demand, but which is supplied without qualitative differentiation across a market. SAREF refers to energy commodities such as electricity, gas, coal and oil. |
| saref:consists of - A relationship indicating a composite entity that consists of other entities (e.g., a temperature/humidity sensor that consists of a temperature sensor and a humidity sensor) |
| saref:controlsProperty - A relationship specifying the Property that can be controlled by a certain Device |
| saref:Currency - The unit of measure for price |
| saref:Device - 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. |
| saref:Door switch - A device of category saref:Actuator that consists of a switch, accomplishes the task saref:Safety, performs the saref:OpenCloseFunction, is used for controlling a door, and can be found in the state saref:OpenCloseState. |
| saref:Drying - A type of task for which a device is designed |
| saref:Electricity - A type of commodity |
| saref:Energy - A saref:Property related to some measurements that are characterized by a certain value measured in an energy unit (such as Kilowatt_Hour or Watt_hour). Furter specializations of the saref:Energy class can be found in the SAREF4ENER extension, where classes such as EnergyMax, EnergyMin and EnergyExpected are defined. |
| saref:Energy meter - An energy meter is a device of category saref:Meter that consists of a meter, accomplishes the tasks saref:MeterReading and saref:EnergyEfficiency, performs the saref:MeteringFunction and is used for the purpose of measuring the saref:Energy property |
| saref:Energy related - A category that considers devices based on energy consumption information and profiles to optimize energy efficiency. |
| saref:Energy unit - The unit of measure for energy |
| saref:EnergyEfficiency - A type of task for which a device is designed |
| saref:Entertainment - A type of task for which a device is designed |
| saref:Event function - A function that allows to notify another device that a certain threshold value has been exceeded. |
| saref:Function - 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. |
| saref:Function related - A category that considers devices, sensors and their specification in terms of functions, states and services |
| saref:Gas - A type of commodity |
| saref:Generator - A type of energy-related device that generates energy |
| saref:Get command - A type of command |
| saref:Get current meter value - The command GET CURRENT METER VALUE. It is used to instantiate the GetCurrentMeterValueCommand class. |
| saref:Get current meter value command - A type of get command |
| saref:Get meter data - The command GET METER DATA. It is used to instantiate the GetMeterDataCommand class. |
| saref:Get meter data command - A type of get command |
| saref:Get meter history - The command GET METER HISTORY. It is used to instantiate the GetMeterHistoryCommand class. |
| saref:Get meter history command - A type of get command |
| saref:Get sensing data - The command GET SENSING DATA. It is used to instantiate the GetSensingDataCommand class. |
| saref:Get sensing data command - A type of get command |
| saref:has command - A relationship between an entity (such as a function) and a command |
 saref:has description - A relationship providing a description of an entity (e.g., device) |
| saref:has function - A relationship identifying the type of function of a device |
| saref:has manufacturer - A relationship identifying the manufacturer of an entity (e.g., device) |
| saref:has meter reading - A relationship between a metering function and the measurement of the reading |
| saref:has meter reading type - A relationship identifying the reading type of a measurement (e.g., Water, Gas, Pressure , Energy , Power, etc.) |
| saref:has model - A relationship identifying the model of an entity (e.g., device) |
| saref:has name - A relationship providing the name of an entity (e.g., device) |
| saref:has price - A relationships indentifying the price associated to an entity |
| saref:has profile - A relationship associating a profile to a certain entity (e.g., a device) |
| saref:has sensing range - A relationship between a sensing function and a measurement identifying the range of a sensor detection |
| saref:has sensor type - A relationship identifying the sensing type of a sensor detection (i.e., Temperature, Occupancy, Humidity, Motion , Smoke, Pressure, etc.) |
| saref:has state - A relationship identifying the type of state of a device |
| saref:has threshold measurement - A relationship associated with an event function to notify that a certain threshold measurement has been exceeded |
| saref:has time - A relationship to associate time information to an entity |
| saref:has typical consumption - A relationship identifying the typical (energy or power) consumption of a device |
| saref:has value - A relationship defining the value of a certain property, e.g., energy or power |
| saref:hasTimestamp - A relationship stating the timestamp of an entity (e.g. a measurement). |
| saref:Humidity - A saref:Property related to some measurements that are characterized by a certain value that is measured in a humidity unit |
| saref:HVAC - Heating, Ventilation and Air Conditioning (HVAC) device that provides indoor environmental comfort |
| saref:Illuminance unit - The unit of measure for light |
| saref:is accomplished by - A relationship indentifying the task accomplished by a certain entity (e.g., a device) |
| saref:is command of - A relationship between a command and a function. |
| saref:is controlled by device - A relationship specifying the devices that can control a certain property |
| saref:is measured by device - A relationship specifying the devices that can measure a certain property |
| saref:is measured in - A relationship identifying the unit of measure used for a certain entity. |
| saref:is offered by - A relationship between a service and a device that offers the service |
| saref:is used for - A relationship specifying the purpose for which a device is used for (e.g., controlling a Commodity) |
| saref:isAbout - A relationship identifying what an entity, such as a Profile, is about |
| saref:Level control function - An actuating function that allows to do level adjustments of an actuator in a certain range (e.g., 0%-100%), such as dimming a light or set the speed of an electric motor. |
| saref:Light - A saref:Property related to some measurements that are characterized by a certain value that is measured in a illuminance unit (lux) |
| saref:Light switch - A device of category saref:Actuator that consists of a switch, accomplishes the task saref:Lighting, performs the saref:OnOffFunction, measures the property saref:Light, and can be found in the state saref:OnOffState. It can offer a switch on service. |
| saref:Lighting - A type of task for which a device is designed |
| saref:Lighting device - A device used for illumination, irradiation, signaling, or projection |
| saref:Load - A type of energy-related device that consumes energy |
| saref:makesMeasurement - A relation between a device and the measurements it makes. Such measurement will link together the value of the measurement, its unit of measure and the property to which it relates. |
| saref:Measurement - 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. |
| saref:measuresProperty - A relationship specifying the Property that can be measured by a certain Device |
| saref:Meter - 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. |
| saref:Meter reading - A type of task for which a device is designed |
| saref:Metering function - A function that allows to get data from a meter, such as current meter reading or instantaneous demand |
| saref:Micro renewable - A device that generates renewable energy from natural resources such as teh sun, wind and water |
| saref:Motion - A saref:Property related to some measurements that are characterized by a certain value that is measured in a unit of measure for motion |
| saref:Multi level state - A type of state |
| saref:Multimedia - A device designed to display, store, record or play multimedia content such as audio, images, animation, video |
| saref:Network - A device used to connect other devices in a network, such as hub, switch or router in a Local Area Network (LAN). |
| saref:Notify - The value NOTIFY. It is used to instantiate the NotifyCommand. |
| saref:Notify command - A type of command |
| saref:Occupancy - A saref:Property related to some measurements that are characterized by a certain value (saref:hasValue property) that is measured in a unit of measure for occupancy |
| saref:Off - The value OFF. It is used to instantiate different classes such as the OffCommand class and OffState class. |
| saref:Off command - A type of command |
| saref:Off state - The state of a device that is ON |
| saref:offers - A relationship between a device and a service |
| saref:On - The value ON. It is used to instantiate different classes such as the OnCommand class and OnState class. |
| saref:On command - A type of command |
| saref:On off function - An actuating function that allows to switch on and off an actuator |
| saref:On off state - A type of state |
| saref:On state - The state of a device that is OFF |
| saref:Open - The value OPEN. It is used to instantiate different classes such as the OpenCommand class and OpenState class. |
| saref:Open close function - An actuating function that allows to open and close a device |
| saref:Open close state - A type of state |
| saref:Open command - A type of command |
| saref:Open state - The state of a device that is OPEN |
| saref:Pause - The value PAUSE. It is used to instantiate classes such as the PauseCommand class. |
| saref:Pause command - A type of command |
| saref:Power - A saref:Property related to some measurements that are characterized by a certain value that is measured in a power unit (such as watt or kilowatt). Further specializations of the saref:Power class can be found in the SAREF4ENER extension, where classes such as PowerMax, PowerMin and PowerExpected are defined. |
| saref:Power unit - The unit of measure for power |
| saref:Pressure - A saref:Property related to some measurements that are characterized by a certain value that is measured in a pressure unit (bar or pascal) |
| saref:Pressure unit - The unit of measure for pressure |
| saref:Price - A saref:Property crelated to some measurements that are characterized by a certain value that is measured using saref:Currency |
| saref:Profile - A specification associated to a device to collect information about a certain Property (e.g., Energy) or Commodity (e.g.Water) for optimizing its usage in the home, office or building in which the device is located. This specification is about a certain Property or Commodity (saref:isAbout), can be calculated over a time span (saref:hasTime ) and can be associated to some costs (saref:hasPrice). An example is the Power Profile defined in the SAREF4ENER extension that can be associated to a device for optimizing the Energy efficiency in the home, office or building in which the device is located. |
| saref:Property - 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. |
| saref:relatesToMeasurement - A relationship between a property and the measurements it relates to |
| saref:relatesToProperty - A relationship between a measurement and the property it relates to |
| saref:represents - A relationship between a service and a function. |
| saref:Safety - A type of task for which a device is designed |
| saref:Sensing function - A function that allows to transmit data from sensors, such as measurement values (e.g., temperature) or sensing data (e.g., occupancy) |
| saref:Sensor - A device that detects and responds to events or changes in the physical environment such as light, motion, or temperature changes. Further, a device of category saref:Sensor that performs a saref:SensingFunction. |
| saref:Service - A service is a representation of a function to a network that makes the function discoverable, registerable, remotely controllable by other devices in the network. A service can represent one or more functions. A Service is offered by a device that wants (a certain set of) its function(s) to be discoverable, registerable, remotely controllable by other devices in the network. A Service must specify the device that is offering the service and the function(s) to be represented. |
| saref:Set absolute level - The value SET ABSOLUTE LEVEL. It is used to instantiate classes such as the SetAbsoluteLevelCommand class. |
| saref:Set absolute level command - A type of set level command |
| saref:Set level command - A type of command |
| saref:Set relative level - The value SET RELATIVE LEVEL. It is used to instantiate classes such as the SetRelativeLevelCommand class. |
| saref:Set relative level command - A type of set level command |
| saref:Smoke - A saref:Property related to some measurements that are characterized by a certain value that is measured in a unit of measure for smoke |
| saref:Smoke sensor - A device that consists of a sensor, has category saref:Sensor, performs the saref:SensingFunction and saref:EventFunction (which notifies that a certain threshold has been exceeded), and is used for the purpose of sensing a property of type saref:Smoke. |
| saref:Start - The value START. It is used to instantiate different classes such as the StartCommand class and StartState class. |
| saref:Start command - A type of command |
| saref:Start state - The state of a device that is STARTED |
| saref:Start stop function - An actuating function that allows to start and stop a device |
| saref:Start stop state - A type of state |
| saref:State - 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. |
| saref:Step down - The value STEP DOWN. It is used to instantiate the StepDownCommand class. |
| saref:Step down command - A type of command |
| saref:Step up - The value STEP UP. It is used to instantiate the StepUpCommand class. |
| saref:Step up command - A type of command |
| saref:Stop - The value STOP. It is used to instantiate different classes such as the StopCommand class and StopState class. |
| saref:Stop command - A type of command |
| saref:Stop state - The state of a device that is STOPPED |
| saref:Storage - A type of energy-related device that stores energy |
| saref:Switch - A device of category saref:Actuator that performs an actuating function of type saref:OnOffFunction or saref:OpenCloseFunction |
| saref:Switch on service - A type of service that represents an on/off function to the network |
| saref:Task - 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. |
| saref:Temperature - 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) |
| saref:Temperature sensor - A device that consists of a sensor, has category saref:Sensor, performs the saref:SensingFunction and is used for the purpose of sensing a property of type saref:Temperature |
| saref:Temperature unit - The unit of measure for temperature |
| saref:Time - A saref:Property that allows to specify the time concept in terms of instants or intervals according to the imported W3C Time ontology. |
| saref:Toggle - The value TOGGLE. It is used to instantiate the the ToggleCommand class |
| saref:Toggle command - A type of command |
| saref:Unit of measure - 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). |
| saref:Washing - A type of task for which a device is designed |
| saref:Washing machine - A device of category saref:Appliance and saref:Load that accomplishes the task saref:Washing, performs an actuating function of type saref:StartStopFunction, can be found in the state saref:StartStopState, and can have a saref:Profile that characterizes its energy consumption. |
| saref:Water - A type of commodity |
| saref:watt hour - The Watt Hor is a unit of energy equivalent to one watt (1 W) of power expended for one hour (1 h) of time. An energy expenditure of 1 Wh represents 3600 joules |
| saref:WellBeing - A type of task for which a device is designed |
 time:after |
| time:intervalAfter |
| time:intervalContains |
| time:intervalFinishedBy |
| time:intervalMetBy |
| time:intervalOverlappedBy |
| time:intervalStartedBy |
 time:TemporalUnit - The unit of measure for time |
 time:unitDay |
| time:unitHour |
| time:unitMinute |
| time:unitMonth |
| time:unitSecond |
| time:unitWeek |
| time:unitYear |