The CASCaRA Graph is defined by a metamodel and ontology for representing and integrating product information from diverse sources into a knowledge graph. It enables seamless collaboration between different tools and domains throughout the entire product lifecycle.
This site publishes documentation and serves the schemata, the semantic infrastructure as well as the ontology with CORS enabled.
Content
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Documentation: The latest revision as agreed by the CASCaRA Submission Team:
• Metamodel
• Semantic Infrastructure (in preparation)
• Ontology (in preparation) -
JSON-LD Schemata: The versions as developed by the CASCaRA Submission Team:
• Latest
• 2026-02-18
• 2026-01-12 -
Transformations: The transformations from source formats to the CASCaRA Graph:
• ReqIF (in preparation)
• UML/SysML v1 via XMI (in preparation)
• FMI/SSP (in preparation)
• LOTAR (in preparation) -
Reference Implementation: In development for verification and validation before standard submission.
• Release (in preparation)
• Development "beta" Release (in preparation)
• Development "alpha" Release
Key Features
- Separation of Concerns: Separate syntax and semantics, so that no software updates are needed when the ontology evolves over time.
- Transformation: Assure loss-less transformation between Knowledge Graphs (RDF/OWL), Property Graphs (GQL) and Object-oriented Programming.
- Federation: Support dataspaces with federated data under full control of the respective owners.
- Querying: Enforce a certain graph pattern or profile, so that the same queries can be applied, no matter where the data came from originally.
- Extensibility: Complement CASCaRA Ontology with corporate or even project ontologies.
- Specialization: Support semantic class hierarchies.
- Multi-Language Support: Built-in support for multilingual content.
- Versioning: Revision control at the level of individual entities and their relationships.
Project and Community
The CACaRA Graph is being developed as part of the CASCaRA project (Collaborative Artifact, Specification, Context and Resource Access), an initiative by:
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Gesellschaft für Systems Engineering e.V. (GfSE)
German Society for Systems Engineering
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prostep ivip e.V.
Association for the Advancement of International Product Data Standards
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OMG
Object Management Group
A Request of Proposal for a standard (RFP) has been accepted by the OMG in December 2024. The final standard submission is planned for 2026.
News
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2026-03-10
CASCaRA Reference Implementation
A joint effort resulted in a first issue of the CASCaRA Reference Implementation.
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2026-01-12
Metamodel Implementation
Complete implementation in JSON-LD with JSON Schema. Validation with real-world examples is starting.
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2025-12-08
CASCaRA Initial Submission
Initial standard submission to OMG completed. Strong interest from other OMG initiatives.
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2024-12-13
OMG RFP Approved
Request for Proposal approved by OMG Architecture Board and Technical Committee.
Contact and Contribute
Interested in the CASCaRA Graph? We're looking for support from companies and software developers!
👤 Contact
Uwe Kaufmann
Uwe.Kaufmann@gfse.org |
LinkedIn
👤 Technical Lead
Dr.-Ing. Oskar von Dungern
Oskar.Dungern@gfse.org |
LinkedIn | GitHub
Michael Kirsch
Michael.Kirsch@em.ag |
LinkedIn