In Catena-X, the Semantic Hub publishes and manages semantic data models. It allows data and service providers to use and reuse these models efficiently. Each data model is versioned to ensure transparency and control, managing their release status effectively.
🧩 What Are Semantic Models?
Semantic models define the structure and meaning of data elements and their relationships. Each model is versioned and assigned a lifecycle status such as:
Draft – Not yet released or finalized
Released – Officially published and ready for use
Deprecated – No longer recommended, may be removed in the future
📍 Navigation
To access the Semantic Hub:
Technical Setup → Semantic Hub
🔎 Exploring Models
You can search for models by name using the search bar. You can also filter the list by:
All
Released
Draft
Deprecated
Each row shows:
Name
Vocabulary Type (e.g., BAMM)
Version
Status
Detail (click the arrow to view more)
📄 Model Details
Clicking the Detail arrow opens a modal with:
Name, Version, and Status
Aspect model URN – Unique identifier
Diagram of the aspect model
Download Options:
TTL file
Documentation
JSON Schema
Example Payload JSON
AASX or AAS file format (selectable)
You may also define a Base URL to customize the default Open API link used to retrieve the model programmatically.
💡 Note: Creating and publishing models should only be done by authorized participants