The Flow Systems Ontology (FSO) is an ontology for describing interconnected systems with material or energy flow connections, and their components.
The namespace for FSO terms is http://www.w3id.org/fso#.
The suggested prefix for the FSO namespace is fso.
The FSO ontology is available at http://www.w3id.org/fso.
The Turtle serialization of the latest FSO is available here.
Systems participating in processes where "flow" is a central concept are found in many disciplines.
The namespace for FSO terms is http://www.w3id.org/fso# .
The suggested prefix for the FSO namespace is fso.
The FSO ontology is available at http://www.w3id.org/fso.
Classes: fso:Component, fso:DistributionSystem, fso:EnergyConversionDevice, fso:Fitting, fso:FlowController, fso:FlowMovingDevice, fso:Segment, fso:StorageDevice, fso:Terminal, fso:TreatmentDevice, fso:SupplySystem, fso:System, fso:ReturnSystem
Object properties: fso:connectedWith, fso:exchangesElectricChargeWith, fso:exchangesFluidWith, fso:exchangesHeatWith, fso:feedsFluidTo, fso:hasComponent, fso:hasConsumerComponent, fso:hasFluidFedBy, fso:hasFluidReturnedBy, fso:hasFluidSuppliedBy, fso:hasReturnSystem, fso:hasSourceComponent, fso:hasSubSystem, fso:hasSupplySystem, fso:isComponentOf, fso:isConsumerComponentOf, fso:isSourceComponentOf, fso:isSubSystemOf, fso:returnsFluidTo, fso:suppliesFluidTo, fso:transfersHeatTo
Systems are logical collections of components, which may have attributes such as design specifications assigned to them. Systems may be divided into subsystems, and subsystems may be counted as a part of multiple supersystems. Examples of overlapping systems and system relationships inferrable from component relationships are illustrated in .
Systems may act as "sources" or "consumers". The role of a source or consumer depends on the perspective. For example, a heat exchanger can be seen as a consumer from upstream, while it may be a source downstream.The following examples illustrate the use of systems:
IRI https://w3id.org/fso#System
A system is a logical collection of components that may have properties that are valid for the components as a collection.
Example | In buildings, common examples include heating systems and ventilation systems. |
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IRI https://w3id.org/fso#DistributionSystem
A system that distributes energy and/or mass.
Sub class of | fso:System |
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IRI https://w3id.org/fso#SupplySystem
A supply system is a system that supplies something from a source to consumers, as opposed to returning it. For example, fluid systems such as heating systems have a logical division between supply and return systems.
Sub class of | fso:DistributionSystem |
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IRI https://w3id.org/fso#ReturnSystem
A return system is a system that returns something from consumers, as opposed to supplying it. For example, fluid systems such as heating systems have a logical division between supply and return systems.
Sub class of | fso:DistributionSystem |
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IRI https://w3id.org/fso#hasSubSystem
Relation between a supersystem and its subsystem.
Domain | fso:System |
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Range | fso:System |
Inverse of | fso:isSubSystemOf |
IRI https://w3id.org/fso#hasSupplySystem
Subproperty of | fso:hasSubSystem |
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Domain | fso:System |
Range | fso:SupplySystem |
IRI https://w3id.org/fso#hasReturnSystem
Subproperty of | fso:hasSubSystem |
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Domain | fso:System |
Range | fso:ReturnSystem |
IRI https://w3id.org/fso#isSubSystemOf
Inverse of | fso:hasSubSystem |
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IRI https://w3id.org/fso#hasComponent
Inverse of | fso:isComponentOf |
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IRI https://w3id.org/fso#hasConsumerComponent
Relation between a fso:System and a fso:Component acting as a consumer of energy or matter from the system. For example, a faucet is a consumer for a water system and an air terminal is a consumer for a ventilation system.
Subproperty of | fso:hasComponent |
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Inverse of | fso:isConsumerComponentOf |
IRI https://w3id.org/fso#hasSourceComponent
Relation between a fso:System and a fso:Component acting as a source of energy or matter to the system. For example, a district heating heat exchanger may act as a source of heat for a building heating system, while the district heating system will see the same heat exchanger as a consumer. Similarly, an AHU may have a heating coil as a source of heat, while the heating system will consider that coil as a consumer.
Subproperty of | fso:hasComponent |
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Inverse of | fso:isSourceComponentOf |
IRI https://w3id.org/fso#isComponentOf
Relation between a component and a system containing the component.
Inverse of | fso:hasComponent |
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Domain | fso:Component |
Range | fso:System |
IRI https://w3id.org/fso#isConsumerComponentOf
Inverse of fso:hasConsumerComponent, denoting a component as a consumer of energy or matter from a system.
Subproperty of | fso:isComponentOf |
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Inverse of | fso:hasConsumerComponent |
IRI https://w3id.org/fso#isSourceComponentOf
Inverse of fso:hasSourceComponent, denoting a component as a source of energy or matter into a system.
Subproperty of | fso:isComponentOf |
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Inverse of | fso:hasSourceComponent |
The component hierarchy is largely inspired by the one in IFC.
IRI https://w3id.org/fso#Component
Components are the physical devices and pieces of equipment used to distribute materials or energy, and to interact with the flow of those.
IRI https://w3id.org/fso#EnergyConversionDevice
A device that is used to convert energy from one form to another, or move it from one system to another. Potential examples include motors and heat exhangers.
Sub class of | fso:Component |
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IRI https://w3id.org/fso#Fitting
A component used to connect segments to each other, or to other components. For example, a junction in a pipe system.
Sub class of | fso:Component |
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IRI https://w3id.org/fso#FlowController
A device that has the potential to control the flow in a network. For example, valves and dampers.
Sub class of | fso:Component |
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IRI https://w3id.org/fso#FlowMovingDevice
A device used to induce movement in a network. For example, pumps and fans.
Sub class of | fso:Component |
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IRI https://w3id.org/fso#Segment
A component used to enable the passage of material or energy. For example, pipes and ducts.
Sub class of | fso:Component |
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IRI https://w3id.org/fso#StorageDevice
A device used to store mass or energy. For example, a water tank or a battery.
Sub class of | fso:Component |
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IRI https://w3id.org/fso#Terminal
A component used to allow material flow out of a distribution system. For example, faucets and air vents.
Sub class of | fso:Component |
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IRI https://w3id.org/fso#TreatmentDevice
A device used to change the properties of material flowing through it. For example, filters.
Sub class of | fso:Component |
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Connections between components and systems imply certain process relationships. For example, a component may supply fluid to another, or components may transfer heat between each other. Connections between components may imply connections between the systems they are a part of.
IRI https://w3id.org/fso#connectedWith
A generic "connection" relation between things.
IRI https://w3id.org/fso#exchangesElectricityWith
Relation between things that exchange electric charge, i.e. have electrical current between them.
Subproperty of | fso:connectedWith |
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IRI https://w3id.org/fso#exchangesFluidWith
Relation between two things which have a fluid exchange connection
Subproperty of | fso:connectedWith |
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IRI https://w3id.org/fso#feedsFluidTo
Relation from a thing feeding fluid to the thing it is feeding fluid to.
Subproperty of | fso:exchangesFluidWith |
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Inverse of | fso:hasFluidFedBy |
IRI https://w3id.org/fso#suppliesFluidTo
Relation implying logical supply flow from a thing to another.
Subproperty of | fso:feedsFluidTo |
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Inverse of | fso:hasFluidSuppliedBy |
IRI https://w3id.org/fso#returnsFluidTo
Relation implying logical return flow from a thing to another.
Subproperty of | fso:feedsFluidTo |
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Inverse of | fso:hasFluidReturnedBy |
IRI https://w3id.org/fso#hasFluidFedBy
Relation from a thing that is fed fluid to the thing feeding the fluid.
Subproperty of | fso:exchangesFluidWith |
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Inverse of | fso:feedsFluidTo |
IRI https://w3id.org/fso#hasFluidSuppliedBy
Relation between a thing that has fluid supplied to it and the thing supplying the fluid.
Subproperty of | fso:hasFluidFedBy |
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Inverse of | fso:suppliesFluidTo |
IRI https://w3id.org/fso#hasFluidReturnedBy
Relation between a thing that has fluid returned to it and the thing returning the fluid.
Subproperty of | fso:hasFluidFedBy |
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Inverse of | fso:returnsFluidTo |
IRI https://w3id.org/fso#exchangesHeatWith
Relation between two things which have a heat exchange connection.
Subproperty of | fso:connectedWith |
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IRI https://w3id.org/fso#transfersHeatFrom
Relation signifying heat exchange with intended or actual direction of heat transfer from the second entity to the first. For example, a cooling coil is intended to absorb the heat from air.
Subproperty of | fso:exchangesHeatWith |
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Inverse of | fso:transfersHeatTo |
IRI https://w3id.org/fso#transfersHeatTo
Relation signifying heat exchange with intended or actual direction of heat transfer from the first entity to the second. For example, a radiator is intended to transfer heat to the surroundings.
Subproperty of | fso:exchangesHeatWith |
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Inverse of | fso:transfersHeatFrom |
Alignment to the SAREF4BLDG ontology is available here.
Alignment to the SAREF4SYST ontology is available here.
Initial version.