| AAS | Asset Administration Shell |
| AP | Advisory Provider |
| API | Application Programming Interfaces |
| BAP | Business Application Provider |
| BPN(BPNL, BPNA, BPNS) | Business Partner Number (Legal Entities, Addresses, Sites) |
| CAB | Conformity Assessment Body |
| CAC | Conformity Assessment Criteria |
| COTS | Commercial-off-the-Shelf (Software) |
| CSP-A | Core Service Provider A |
| CSP-B | Core Service Provider B |
| cxOS | Catena-X Operating System |
| DAPS | Dynamic Attribute Provisioning Service |
| DDTR | Decentralized Digital Twin Registry |
| DSSC | Data Space Support Center |
| EDC | Eclipse Data Space Components |
| EDWG | Eclipse Data Space Working Group |
| ETL | Extract, Transform, Load (Process) |
| GXDCH | Gaia-X Digital Clearing House |
| IAM | Identity and Access Management |
| IDSA | International Data Spaces Association |
| IRS | Item Relationship Service |
| MIW | Managed Identity Wallet |
| PCF | Product Carbon Footprint |
| RfT | Request for Tender |
| SaaS | Software-as-a-Service |
| SSI | Self-Sovereign Identity |
| TRG | Tractus-X Release Guideline |
| OSP | Onboarding Service Provider |
| VC | Verifiable Credential |
| VP | Verifiable Presentation |