Table of contents Introduction Sources and licences Contact and partners Semantic specifications Business ontology Product ontology Technical ontology Technical specifications Protocols specifications Decentralized identifier matching reference system Specifics API Authentication strategy Architecture representations Order states Prototype specifications 🚧 Solid client protocol 🚧 Connector Model specifications Semantizer specifications Connector specifications Appendixes Appendix 1. General decisions Federation vs Syndication Stateless or stateful? Service granularity Directionality Identification and authentication Centralized or decentralized data storage Metadata repository Appendix 2. Technical decisions Libraries to develop in semantic Transition strategy fron current to ideal Service standard Serialization Transport layer Multi- or single-resource requests? Right delegation between platforms and DFC Data validity and inferences Appendix 3. Practical Examples Version 1.9 Version 1.8.2 version 1.7.4 version 1.7.3 version 1.7.1 version 1.7 version 1.6.2 version 1.6.1 version 1.6 version 1.5.1 version 1.5 version 1.3 version 1.2 Contributing Procedures Updates to the ontology Patch releases procedure Minor releases procedure Major releases procedure Taxonomy enrichment Taxonomy updates Platform Notifcations Platform Register Platform Register