VSSo Core: Vehicle Signal Specification Core Ontology
This ontology describes the car's attributes, branches and signals defined in the Vehicle Signal Specification.
v2.0-develop
The core ontology introduces concepts for the structural elements of VSS defined through the rule set in the specifications. Figure 1 gives an overview of those. The root node is the Vehicle itself. From there the structure is given through so-called Branches. They serve as sorting element for the leaf nodes and are not specified in the specification itself in greater details. The leaf nodes contain the semantic information of signals, which expext to describe and hold information, which changes in greater frequency and of attributes, which are more static. The core of the ontology defines this structure in an OWL ontology and serves as a basis for the defined signals of the standard catalogue and potential further development of the branches as more than structural information.
VehicleProperty
_VehicleProperty_ - Central concept for defining a vehicle, either through a VehicleComponent structure or connected directly to the vehicle. Every VehicleProperty shall be instantiated with a [vehiclePropertyValue](#vehiclePropertyValue). It is good practice to set the time when the value was updated through [propertyValueUpdatedAt](#propertyValueUpdatedAt) The VehicleProperty follows the concept of a [ssn:Property](https://www.w3.org/TR/vocab-ssn/#SSNProperty)
StaticVehicleProperty
_StaticVehicleProperty_ - Follows the definition of an [attribute](https://covesa.github.io/vehicle_signal_specification/rule_set/data_entry/attributes/) in VSS. `StaticVehicleProperty` is meant to stay stable at least over the duration of an ignition cycle. If you expect more frequent updates, please consider [DynamicVehicleProperty](#DynamicVehicleProperty)
Vehicle
_Vehicle_ - Core concept of the ontology. Collects [VehicleComponents](#VehicleComponent) and [VehicleProperties](#VehicleProperty) belonging to a vehicle
VehicleComponent
_VehicleComponent_ - First of all a sorting element for [VehicleProperties](#VehicleProperty), following on the definition of a [branch](https://covesa.github.io/vehicle_signal_specification/rule_set/branches/). It is encouraged to use the concept for actual parts modeled as `VehicleComponent.
ActuatableVehicleProperty
_ActuatableVehicleProperty_ - Follows the definition of an [actuator](https://covesa.github.io/vehicle_signal_specification/rule_set/data_entry/sensor_actuator/) in VSS. It is a [DynamicVehicleProperty](#DynamicVehicleProperty), which can be changed. Refers to [sosa:ActuableProperty](https://www.w3.org/TR/vocab-ssn/#SOSAActuatableProperty)
ObservableVehicleProperty
_ObservableVehicleProperty_ - Follows the definition of an [sensor](https://covesa.github.io/vehicle_signal_specification/rule_set/data_entry/sensor_actuator/) in VSS. It is a [DynamicVehicleProperty](#DynamicVehicleProperty), which can be observed but _not_ changed. Refers to [sosa:ObservableProperty](https://www.w3.org/TR/vocab-ssn/#SOSAObservableProperty)
DynamicVehicleProperty
_DynamicVehicleProperty_ - In contrast to a [StaticVehicleProperty](#StaticVehicleProperty), this property is expected to change frequently, even within an ignition cycle. Examples are the vehicle `speed`, `location`, etc.
PositionInVehicle
_PositionInVehicle_ - Frequently VehicleProperties and VehicleComponents will appear in several different positions in the vehicle. Typicle examples are windows, seats, etc. This concepts shall be used to define the different position of the vehicle. They can be named with the positionName property.
belongsToVehicleComponent
_belongsToVehicleComponent_ - The property defines for VehicleProperties to which VehicleComponent they belong.
hasDynamicVehicleProperty
_hasDynamicVehicleProperty_ - This property connects an instance of a Vehicle or VehicleComponent to a DynamicVehicleComponent.
hasStaticVehicleProperty
_hasStaticVehicleProperty_ - This property connects an instance of a Vehicle or VehicleComponent to a StaticVehicleComponent.
partOfVehicleComponent
_partOfVehicleComponent_ - This property is used to built a partOf hierarchy of VehicleComponents instances.
partOfVehicle
_partOfVehicle_ - This properties conncects VehicleComponents instances with an instance of a Vehicle.
postionedAt
_postionedAt_ - This property connects a VehicleProperty or VehicleComponent in the PositionInVehicle it appears in.
positionName
_positionName_ - DataProperty in order to name the PositionInVehicle.
vehiclePropertyValue
_vehiclePropertyValue_ - Assigns a value to a VehicleProperty.
propertyValueUpdatedAt
_propertyValueUpdatedAt_ - A timestamp representing the time of the last update of a vehiclePropertyValue
VSS Faceted Classification
_vssFacetedClassification_ - VSS path in dot notation of the equivelant concept.