Data Models - Q4 2022
Summary
This chapter of the technical design documents address the semantic interoperability challenges when designing the SDG Once-Only Technical System and ensuring its interconnection with the EU Member States' IT systems and EU level systems. Data models were developed to streamline the exchange of evidences, together with a methodology for defining new data models and code lists to ensure the quality of the evidence exchanged between the Member States.
- The metholodogy supports the process of creating and maintaining evidence data models. The work done in the past years under the ISA² programme and its action SEMIC served as a basis for the methodology. This methodology is based on best practices and has been tested with certain types of evidence by a working group of Member State representatives.
- Data Models for specific evidence types were developed using the methodology. In this release, these models and the related code lists have been regrouped under three domain categories: 5.2 - Education Domain, 5.3 - Vehicle Domain, and 5.4 - Public Documents.
The SDG regulation does not mandate use of (only) structured evidence types and does not provide a mandate to harmonize. The evidence exchange feature documented in chapter 4 of the technical documents consists of a flow of Messages based on the Evidence Exchange Data Model (EDM), which comprises the EDM Request (Request from Evidence Requester to Evidence Provider for certain data or documents) and the EDM Response (Response from Evidence Provider to Evidence Requester to deliver the requested data or documents). The Query Model is fully documented and supports document-based queries. The Exchange Data Model of evidence exchange is a light-weight generic mechanism to support the exchange of any type of evidence. It facilitates the automated exchange of unstructured and structured types of evidence.
NOTE
The data models and code lists have not been updated since the release of July 2021.
The restructuring of the existing content of this chapter on specific evidence types and the creation of the three domain categories is a first step towards creating more detailed specifications for evidence exchanges in the various procedures in scope of the SDG regulation. In the future, these sections will also include (or reference) the deliverables of the work on procedures, requirements and evidence types and provide more detailed coverage of alignment with other initiatives, including so-called related systems.
Also note that the former Generic Data Model has been removed from this chapter. It is obsolete as this release of the technical design documents covers all of the former content in chapters 3 and 4.
The content of this chapter is structured in the following sub-chapters:
Change log
For this release, the changes for all chapters are combined at the top level.
License
The content of this chapter is licensed under European Union Public Licence (EUPL) version 1.2.