Welcome to the Omega-X Ontology repository! The repository hosts the two versions of the CSDM (Common Semantic Data Model) 1.0 and 1.1. Latest version published on May 2025.
The repository structure is built to fit multi-level modular ontologies, following the ACIMOV ontology developement methodology. It hosts also relevant alignements to external resources (ontologies/standards).
The tooling section includes automation scripts for various tasks: ontology building, documentation release, semantic validation, data semantization...
The omega-X ontology is defined by twelve modules: a top_level ontology for Events and Time Series (ETS), 7 domain ontolog modulesy for Energy domaines, and 4 Use case family ontology modules.
📂 Omega-X Ontology
│
├─ 📁 EventsTimeSeriesOntology
│ ├── 📄 EventsTimeSeriesOntology-v.ttl /* T-box at version v
│ ├── 🖼️ EventsTimeSeries-v.png /* eg. CHOWLK diagram at version **v**
│ ├── ❓ cq-Q.rq /* Optional, a set of Competency questions translated as Sparql queries.
│ └── 📄 README.md
│
├─ 📁 ModuleNameOntology
│ ├── 📄 ModuleNameOntology.ttl /* T-box
│ ├── 🖼️ diagram.<imgFormat> /* eg. CHOWLK diagram
│ ├── ❓ cq-Q.rq /* A set of Competency questions translated as Sparql queries.
│ └── 📄 README.md
│
├─ 📁 Docs
│ ├── 📄 ModuleName.html /* Main documentation web page for the module
│ ├── 🖼️ diagram.<imgFormat> /* eg. Required images for the documentation
│
├─ 📁 Tooling
│ ├── 📁 [Demonstration] /* Examples of demonstration implementing CSDM
│ ├── 📁 SHACL /* Example of Shacl constraints and validation
│ ├── 📁 Semantisation /* Tutorial of the semantisation feature using CSDM
│ └── 📄 README.md
│
├─ 📁 External Resources
│ ├── 📁 EUMED Metering
│ ├── 📄 onto.ttl /* T-box of a considered external ontology
│ │ ├── 📁 Alignements /* Alignement between the external resource and Omega-X ontology.
│ └── 📄 README.md
│
├─ 📄 README.md
├─ 📄 Omega-X-v.ttl /* Main T-box of the ontology (importing all modules)
├─ 📄 Omega-X-v.drawio /* Main CHOWLK diagram source
| Group Name | Module | Scope | State |
|---|---|---|---|
| Top Level | [Events and Time Series (ETS)](./[Top Level] Events & Time Series Ontology) | ETS ontology provides classes and properties to allow commonly used data structures to be described. | V 1.1 |
| Domain | Energy Data Set (EDS) | EDS ontology extends ETS definitions with specefic energy domain context (both technical and business). | V 1.1 |
| Domain | Eumed Metering (EME) | EME ontology is a semantisation of the Eumed metering profile of the CIM standard. | v1.1 |
| Domain | Property (PROP) | PROP ontology provides a taxonomy of properties used in the energy domain. | v1.1 |
| Domain | Infrastructure (INFRA) | INFRA ontology provides a common description for systems infrastructures in the energy domain, to be further specialiazed in UC ontologies. | v1.1 |
| Domain | Actor role (ROLE) | ROLE ontology provides a description of business entities roles in the dataspace and in their business activities. | v1.1 |
| Domain | Quality (QUAL) | QUAL ontology provides a taxonomy of quality indicators associated with datasets. | v1.1 |
| Domain | Scheduling (SCHE) | SCHE ontology provides a common description of schedules. | v1.1 |
| Use Case Family | Renewable (REN) | REN is the use case ontology for the renewables use case family. | V1.1 |
| Use Case Family | Flexibility (FLEX) | FLEX is the use case ontology for the flexibility use case family. | V1.1 |
| Use Case Family | Local Energy Communities (LEC) | LEC is the use case ontology for the lec use case family. | V1.1 |
| Use Case Family | Electromobility (EM) | EM is the use case ontology for the electromobility use case family. | V1.1 |
The figure below illustrates common modules (Top level and domain modules). The online diagram version is available here : Common Modules Diagram
- Ontology diagrams can be defined using CHOWLK diagram.net. A library for specific ontology conceptualisation is available here CHOWLK Ontology library. To learn more about visual notation specification, see: CHOWLK Documentation.
This project is licensed under the MIT License. See the LICENSE file for details.