Digital Twin ontology used to define Digital Twins and Semantic Digital Twins and aggregations by dimensions using Web of Things.
WoTDT: The WoT Digital Twin Ontology.
González-Gerpe, S., Poveda-Villalón, M., & García-Castro, R. (2024). DTAG: A Methodology for Aggregating Digital Twins Using the WoTDT Ontology. APPLIED SCIENCES-BASEL, 14(13).
stable
Property that describes de action of aggregation between two different entities or dtw:DigitalTwinAggregate.
aggregate DTwA
Property that describes de action of aggregation between two different entities or dtw:DigitalTwinInstance.
aggregate DTwI
DTwA aggregated from a specific DTwA
aggregated DTwA from
DTwI aggregated from a specific DTwA
aggregated DTwI from
Property that describes the different interaction affordances that the dt:DigitalTwinServices contains.
contains interaction affordance
Property that describes the different connections of the dtw:DigitalTwin.
has connection
Property that describes the connection point that the element of the DTw has to connect with others
has connection point
Property that describes if the connection point is the consumer of the information.
has consumer
Property that describes the different data that the dt:DigitalTwinData contains.
has data
Property that describes the different Digital Entities that the digital twin contains.
has digital entity
Property that describes the different extension formats that the models or data can be found.
has format
Property that describes the different models that the dtw:DigitalEntity contains.
has model
Property that describes the Physical Entity that the digital twin describes.
has physical entity
Property that describes if the connection point is the provider of the information.
has provider
Connection of a Digital Twin.
is connection of
Connection point is referred to a Digital Entity Dimension
is connection point of
Connection point is consumer of a connection.
is consumer of
Data of a Digital Entity.
is data of
Digital entity of a Digital Twin.
is digital entity of
Format of a Model.
is format of
Interaction Afforfance of a Digital Entity.
is interaction affordance of
Model contained by the Digital Entity Dimension.
is model of
Physical entity of a Digital Twin.
is physical entity of
Connection point is provider of a connection.
is provider of
Model aggregated from model.
model aggregated from
Model aggregates model.
model aggregates
Resource aggregated from resource.
resource aggregated from
Resource aggregates resource.
resource aggregates
Class has target description.
description
Class has target title.
title
Extension of the model or data with which can be found.
has extension
Class has target uri.
has target
Interaction affordance has form.
has form
Interaction affordance has an URI template schema.
has uri template schema
Resource of data from DCAT ontology
Resource
Describes the behaviors and response mechanisms of the entity (e.g. state transition, performance and disturbances)
Behavioral Model
Existing connection between different dtw:ConnectionPoint.
Connection
Connection point of the connection.
Connection Point
Connection between dcat:Resource and td:InteractionAffordance.
Data Service Connection
This dimension of the digital twin consists of various data models that represents all the information allocated in the digital twin.
Digital Entity
Digital Entity Dimension class to add resource, model and interaction affordances clases
Digital Entity Dimension
A realistic representation of all product life cycle components using physical, virtual and interaction data.
Digital Twin
Describes the aggregation of all the DTIs. Unlike the DTI, the DTA may not be an independent data structure. It may be a computing construct that has access to all DTIs and queries them either ad-hoc or proactively.
Digital Twin Aggregate
Dimensions of which the digital twin is composed.
Digital Twin Dimension
Describes a specific corresponding physical product that an individual Digital Twin remains linked to throughout the life of that physical product.
Digital Twin Instance
Connection point of the connection that is external to the DTw.
External Connection Point
Extension format in which the model or data is available.
Format
Describes all the geometric parameters of the physical entity (e.g. shapes, sizes and assembly relations).
Geometric Model
Connection point of the connection that is internal to the DTw.
Internal Connection Point
Model that allows the alignment of data with the objective of obtaining harmonised data from non-harmonised data.
Mapping Model
Representation or conceptualization of the data registered in the Virtual Entity dimension.
Model
Connection between dtw:Model and dcat:Resource.
Model Data Connection
Model to model connection.
Model Model Connection
Connection between dtw:Model and td:InteractionAffordance.
Model Service Connection
Model that contains the conceptualization of the information of the digital twin. This conceptualization activity refers to the organization and structuration of the information (data, knowledge, etc.), obtained during the acquisition process, into meaningful models at the knowledge level and according to the ontology requirements specification document.
Ontology Model
This dimension of the digital twin consists of various subsystems, objects and sensory devices. These subsystems can include dynamic systems, control systems, maintenance systems, etc., and can be combined for a specific task. Also, non physical entities can be represented.
Physical Entity
Responsible for providing all the physical properties (e.g. speed and force) based on dt:GeometricModel
Physical Model
A set of rules extracted from the historical data obtained from the physical model, whose function is to provide the virtual entity with a judgment for decision making, optimization, evaluation, prediction and maintenance.
Rules Model
Model representing semantic web rules or conceptualizations.
Semantic Model
Model that contains the data validation rules allowing the data to be validated.
Shapes Model
Affordance that represents a Service.
Interaction Affordance
Thing of WoT.
Thing