DPP Keystone

About This Project

This repository provides a centralized, harmonized vocabulary that maps the semantic equivalencies between various standards (ISO, GS1, etc.) to any exact schemas that are required for the DPP. Our goal is to ensure interoperability and lower the barrier for implementation, especially for SMEs.

For more details on the approach, please read the Methodology documentation.

Version 1 (V1) Resources

The stable namespace for Version 1 terms is: https://dpp-keystone.org/spec/v1/terms#

The recommended prefix is: dppk:

Contexts (Implementation Vocabularies)

These JSON-LD context files provide developer-friendly mappings for implementation.

• Browse All Contexts
  • Contexts Summarized(HTML Docs)
• Individual Raw Files:
  • Dpp Battery Context
  • Dpp Construction Context
  • Dpp Core Context
  • Dpp Dopc Context
  • Dpp Electronics Context
  • Dpp Epd Context
  • Dpp Product Details Context
  • Dpp Textile Context

Ontology (Semantic Definitions)

• Browse Modules:
  • Browse Core Modules (HTML Docs)
  • Browse Sector Modules (HTML Docs)
• Individual Classes:
  • V1 Ontology Entry Point
  • Core:
    • Compliance

      • Digital Document
      • Certification
      • Substance of Concern
      • Eco-Design Property
      • Compliance Topic
      • Packaging
      • Production Step
    • DoPC

      • Declaration of Performance Characteristics (Compact)
    • EPD

      • Environmental Product Declaration
      • Impact Values
    • Header

      • Digital Product Passport (DPP)
    • Organization

      • Organization
      • Postal Address
      • Economic Operator Role
      • Manufacturer Role
      • Facility Role
      • Conformity Assessment Body Role
      • ISO 6523 Identifier
    • Product

      • Product or Material
      • Quantitative Value
      • Product Characteristic
    • RelatedResource

      • Related Resource
  • Sectors:
    • Battery

      • Battery
      • Battery Carbon Footprint (BCF)
    • Construction

      • Construction Product
      • Declaration of Performance (DoP)
    • Electronics

      • Electronic Device (EEE)
      • Power Tool
    • Textile

      • Textile Product
      • Fibre Composition

Validation Artifacts

• JSON Schema
• Browse SHACL Shapes

Examples (Proof of Concept)

These examples demonstrate how the vocabularies can be applied to different products. They are illustrative and may not be complete.

• Battery Dpp
• Construction Product Dpp
• Drill Dpp V1 Private
• Drill Dpp
• Rail Dpp
• Sock Dpp

Here is an example of how a DPP like this one can be shared via EPCIS:

• EPCIS 2.0 Example Event (JSON-LD)
• Event Subject DPP JSON

JavaScript Utilities

These are helper scripts to aid in processing and transforming DPP data.

• client/dpp-adapter.js
• common/dpp-logic.js
• common/profiles/schema.org.js
• server/dpp-adapter.js

Contributing and Governance

Contributions are welcome. Please review the Contribution Guidelines and the Governance Model.

This project is hosted on GitHub.