Step 6
Interoperability
The DPP only pays off if the data is readable across the value chain. Plan interoperability up-front — grafting it on later is where cost and timeline risk concentrate.
The systems you need to talk to
CIRPASS reference framework
EU-funded horizontal DPP reference architecture and data model. Align your schema with CIRPASS to cut integration effort in later sectors.
GS1 Digital Link
Turns a GTIN into a web-resolvable URL. Works with any QR scanner. The most common resolution pattern for consumer-goods DPPs.
Catena-X
Automotive data space. Mandatory for the battery DPP in the automotive value chain. Uses Eclipse Dataspace Connectors and Verifiable Credentials.
SCIP database
ECHA database of Substances of Very High Concern in articles. Reuse SCIP notifications as the authoritative source for substances-of-concern DPP fields.
ePREL
European Product Registry for Energy Labelling. Already holds energy, durability and spare-parts data for many product groups — DPP should federate, not duplicate.
Minimum interop checklist
- Schema is CIRPASS-compatible (JSON-LD with the published context).
- Identifiers follow GS1 Digital Link or a registered DID method.
- Substances-of-concern fields reference SCIP entries.
- Energy-related fields reference ePREL where applicable.
- Signed attestations use W3C Verifiable Credentials (JWT or JSON-LD proofs).
- Resolver exposes a stable, versioned, authenticated API for professional and authority layers.