Sovereign Data Exchange with Catena-X

The automotive industry faces a core challenge: How can data be exchanged securely and sovereignly along the entire value chain without losing control over your own data?

#What is Catena-X?

Catena-X is an open data ecosystem for the automotive industry. It provides a standardized framework in which companies can share data while maintaining full data sovereignty. This means every participant decides who gets access to which data and under what conditions.

#The Role of Eclipse Dataspace Components

The technical foundation is provided by the Eclipse Dataspace Components (EDC). They implement the Dataspace Protocol and enable:

• Connectors for secure data exchange between participants
• Policy-based access control at the data level
• Decentralized architecture without central data storage

The following diagram shows the basic architecture of an EDC connector:

A simple example of an EDC policy:

{
  "@type": "PolicyDefinition",
  "policy": {
    "permissions": [
      {
        "action": "use",
        "constraints": [
          {
            "leftOperand": "BusinessPartnerNumber",
            "operator": "eq",
            "rightOperand": "BPNL00000003CRHK"
          }
        ]
      }
    ]
  }
}

#Why This Matters

In an increasingly connected industry, keeping data purely internal is no longer sufficient. At the same time, there need to be clear rules and technical guarantees that shared data won't be misused. Catena-X and the EDC solve exactly this tension.

I work with these technologies daily and build solutions that enable companies to securely enter the dataspace.